Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 1 | /* |
| 2 | * linux/drivers/video/omap2/dss/dpi.c |
| 3 | * |
| 4 | * Copyright (C) 2009 Nokia Corporation |
| 5 | * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> |
| 6 | * |
| 7 | * Some code and ideas taken from drivers/video/omap/ driver |
| 8 | * by Imre Deak. |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify it |
| 11 | * under the terms of the GNU General Public License version 2 as published by |
| 12 | * the Free Software Foundation. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 15 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 17 | * more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License along with |
| 20 | * this program. If not, see <http://www.gnu.org/licenses/>. |
| 21 | */ |
| 22 | |
| 23 | #define DSS_SUBSYS_NAME "DPI" |
| 24 | |
| 25 | #include <linux/kernel.h> |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 26 | #include <linux/delay.h> |
Paul Gortmaker | a8a3593 | 2011-07-10 13:20:26 -0400 | [diff] [blame] | 27 | #include <linux/export.h> |
Tomi Valkeinen | 8a2cfea | 2010-02-04 17:03:41 +0200 | [diff] [blame] | 28 | #include <linux/err.h> |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 29 | #include <linux/errno.h> |
Tomi Valkeinen | 8a2cfea | 2010-02-04 17:03:41 +0200 | [diff] [blame] | 30 | #include <linux/platform_device.h> |
| 31 | #include <linux/regulator/consumer.h> |
Tomi Valkeinen | 13b1ba7 | 2012-09-28 10:03:03 +0300 | [diff] [blame] | 32 | #include <linux/string.h> |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 33 | |
Tomi Valkeinen | a0b38cc | 2011-05-11 14:05:07 +0300 | [diff] [blame] | 34 | #include <video/omapdss.h> |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 35 | |
| 36 | #include "dss.h" |
Chandrabhanu Mahapatra | 195e672 | 2012-08-22 11:44:06 +0530 | [diff] [blame] | 37 | #include "dss_features.h" |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 38 | |
| 39 | static struct { |
Tomi Valkeinen | 8a2cfea | 2010-02-04 17:03:41 +0200 | [diff] [blame] | 40 | struct regulator *vdds_dsi_reg; |
Archit Taneja | a72b64b | 2011-05-12 17:26:26 +0530 | [diff] [blame] | 41 | struct platform_device *dsidev; |
Archit Taneja | 5cf9a26 | 2012-06-29 14:19:13 +0530 | [diff] [blame] | 42 | |
Archit Taneja | c8a5e4e | 2012-07-05 12:52:46 +0530 | [diff] [blame] | 43 | struct mutex lock; |
| 44 | |
Archit Taneja | c499144 | 2012-08-08 14:28:54 +0530 | [diff] [blame] | 45 | struct omap_video_timings timings; |
Archit Taneja | 5cf9a26 | 2012-06-29 14:19:13 +0530 | [diff] [blame] | 46 | struct dss_lcd_mgr_config mgr_config; |
Archit Taneja | c6b393d | 2012-07-06 15:30:52 +0530 | [diff] [blame] | 47 | int data_lines; |
Archit Taneja | 81b87f5 | 2012-09-26 16:30:49 +0530 | [diff] [blame] | 48 | |
| 49 | struct omap_dss_output output; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 50 | } dpi; |
| 51 | |
Tomi Valkeinen | 0e8276e | 2012-10-22 16:12:58 +0300 | [diff] [blame] | 52 | static struct platform_device *dpi_get_dsidev(enum omap_channel channel) |
Archit Taneja | a72b64b | 2011-05-12 17:26:26 +0530 | [diff] [blame] | 53 | { |
Tomi Valkeinen | bd0f5cc | 2012-12-13 14:21:30 +0200 | [diff] [blame] | 54 | /* |
| 55 | * XXX we can't currently use DSI PLL for DPI with OMAP3, as the DSI PLL |
| 56 | * would also be used for DISPC fclk. Meaning, when the DPI output is |
| 57 | * disabled, DISPC clock will be disabled, and TV out will stop. |
| 58 | */ |
| 59 | switch (omapdss_get_version()) { |
| 60 | case OMAPDSS_VER_OMAP24xx: |
| 61 | case OMAPDSS_VER_OMAP34xx_ES1: |
| 62 | case OMAPDSS_VER_OMAP34xx_ES3: |
| 63 | case OMAPDSS_VER_OMAP3630: |
| 64 | case OMAPDSS_VER_AM35xx: |
| 65 | return NULL; |
| 66 | default: |
| 67 | break; |
| 68 | } |
| 69 | |
Tomi Valkeinen | 0e8276e | 2012-10-22 16:12:58 +0300 | [diff] [blame] | 70 | switch (channel) { |
| 71 | case OMAP_DSS_CHANNEL_LCD: |
| 72 | return dsi_get_dsidev_from_id(0); |
| 73 | case OMAP_DSS_CHANNEL_LCD2: |
| 74 | return dsi_get_dsidev_from_id(1); |
| 75 | default: |
| 76 | return NULL; |
| 77 | } |
Archit Taneja | a72b64b | 2011-05-12 17:26:26 +0530 | [diff] [blame] | 78 | } |
| 79 | |
Tomi Valkeinen | 0e8276e | 2012-10-22 16:12:58 +0300 | [diff] [blame] | 80 | static enum omap_dss_clk_source dpi_get_alt_clk_src(enum omap_channel channel) |
Archit Taneja | 7636b3b | 2011-04-12 13:52:26 +0530 | [diff] [blame] | 81 | { |
Tomi Valkeinen | 0e8276e | 2012-10-22 16:12:58 +0300 | [diff] [blame] | 82 | switch (channel) { |
| 83 | case OMAP_DSS_CHANNEL_LCD: |
| 84 | return OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC; |
| 85 | case OMAP_DSS_CHANNEL_LCD2: |
| 86 | return OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC; |
| 87 | default: |
| 88 | /* this shouldn't happen */ |
| 89 | WARN_ON(1); |
| 90 | return OMAP_DSS_CLK_SRC_FCK; |
| 91 | } |
Archit Taneja | 7636b3b | 2011-04-12 13:52:26 +0530 | [diff] [blame] | 92 | } |
| 93 | |
Tomi Valkeinen | 03a0d1e | 2012-11-27 16:41:16 +0200 | [diff] [blame] | 94 | static int dpi_set_dsi_clk(enum omap_channel channel, |
Sumit Semwal | ff1b2cd | 2010-12-02 11:27:11 +0000 | [diff] [blame] | 95 | unsigned long pck_req, unsigned long *fck, int *lck_div, |
| 96 | int *pck_div) |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 97 | { |
| 98 | struct dsi_clock_info dsi_cinfo; |
| 99 | struct dispc_clock_info dispc_cinfo; |
| 100 | int r; |
| 101 | |
Archit Taneja | 6d523e7 | 2012-06-21 09:33:55 +0530 | [diff] [blame] | 102 | r = dsi_pll_calc_clock_div_pck(dpi.dsidev, pck_req, &dsi_cinfo, |
| 103 | &dispc_cinfo); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 104 | if (r) |
| 105 | return r; |
| 106 | |
Archit Taneja | a72b64b | 2011-05-12 17:26:26 +0530 | [diff] [blame] | 107 | r = dsi_pll_set_clock_div(dpi.dsidev, &dsi_cinfo); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 108 | if (r) |
| 109 | return r; |
| 110 | |
Tomi Valkeinen | 03a0d1e | 2012-11-27 16:41:16 +0200 | [diff] [blame] | 111 | dss_select_lcd_clk_source(channel, |
| 112 | dpi_get_alt_clk_src(channel)); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 113 | |
Archit Taneja | 5cf9a26 | 2012-06-29 14:19:13 +0530 | [diff] [blame] | 114 | dpi.mgr_config.clock_info = dispc_cinfo; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 115 | |
Archit Taneja | 1bb4783 | 2011-02-24 14:17:30 +0530 | [diff] [blame] | 116 | *fck = dsi_cinfo.dsi_pll_hsdiv_dispc_clk; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 117 | *lck_div = dispc_cinfo.lck_div; |
| 118 | *pck_div = dispc_cinfo.pck_div; |
| 119 | |
| 120 | return 0; |
| 121 | } |
Archit Taneja | 7636b3b | 2011-04-12 13:52:26 +0530 | [diff] [blame] | 122 | |
Tomi Valkeinen | 03a0d1e | 2012-11-27 16:41:16 +0200 | [diff] [blame] | 123 | static int dpi_set_dispc_clk(unsigned long pck_req, unsigned long *fck, |
| 124 | int *lck_div, int *pck_div) |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 125 | { |
| 126 | struct dss_clock_info dss_cinfo; |
| 127 | struct dispc_clock_info dispc_cinfo; |
| 128 | int r; |
| 129 | |
Archit Taneja | 6d523e7 | 2012-06-21 09:33:55 +0530 | [diff] [blame] | 130 | r = dss_calc_clock_div(pck_req, &dss_cinfo, &dispc_cinfo); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 131 | if (r) |
| 132 | return r; |
| 133 | |
| 134 | r = dss_set_clock_div(&dss_cinfo); |
| 135 | if (r) |
| 136 | return r; |
| 137 | |
Archit Taneja | 5cf9a26 | 2012-06-29 14:19:13 +0530 | [diff] [blame] | 138 | dpi.mgr_config.clock_info = dispc_cinfo; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 139 | |
| 140 | *fck = dss_cinfo.fck; |
| 141 | *lck_div = dispc_cinfo.lck_div; |
| 142 | *pck_div = dispc_cinfo.pck_div; |
| 143 | |
| 144 | return 0; |
| 145 | } |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 146 | |
Tomi Valkeinen | 03a0d1e | 2012-11-27 16:41:16 +0200 | [diff] [blame] | 147 | static int dpi_set_mode(struct omap_overlay_manager *mgr) |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 148 | { |
Archit Taneja | c499144 | 2012-08-08 14:28:54 +0530 | [diff] [blame] | 149 | struct omap_video_timings *t = &dpi.timings; |
Archit Taneja | 7636b3b | 2011-04-12 13:52:26 +0530 | [diff] [blame] | 150 | int lck_div = 0, pck_div = 0; |
| 151 | unsigned long fck = 0; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 152 | unsigned long pck; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 153 | int r = 0; |
| 154 | |
Tomi Valkeinen | 8a3db40 | 2012-10-22 16:03:39 +0300 | [diff] [blame] | 155 | if (dpi.dsidev) |
Tomi Valkeinen | 03a0d1e | 2012-11-27 16:41:16 +0200 | [diff] [blame] | 156 | r = dpi_set_dsi_clk(mgr->id, t->pixel_clock * 1000, &fck, |
Archit Taneja | 6d523e7 | 2012-06-21 09:33:55 +0530 | [diff] [blame] | 157 | &lck_div, &pck_div); |
Archit Taneja | 7636b3b | 2011-04-12 13:52:26 +0530 | [diff] [blame] | 158 | else |
Tomi Valkeinen | 03a0d1e | 2012-11-27 16:41:16 +0200 | [diff] [blame] | 159 | r = dpi_set_dispc_clk(t->pixel_clock * 1000, &fck, |
Archit Taneja | 6d523e7 | 2012-06-21 09:33:55 +0530 | [diff] [blame] | 160 | &lck_div, &pck_div); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 161 | if (r) |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 162 | return r; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 163 | |
| 164 | pck = fck / lck_div / pck_div / 1000; |
| 165 | |
| 166 | if (pck != t->pixel_clock) { |
| 167 | DSSWARN("Could not find exact pixel clock. " |
| 168 | "Requested %d kHz, got %lu kHz\n", |
| 169 | t->pixel_clock, pck); |
| 170 | |
| 171 | t->pixel_clock = pck; |
| 172 | } |
| 173 | |
Archit Taneja | 5d512fc | 2012-09-07 17:53:38 +0530 | [diff] [blame] | 174 | dss_mgr_set_timings(mgr, t); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 175 | |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 176 | return 0; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 177 | } |
| 178 | |
Tomi Valkeinen | 03a0d1e | 2012-11-27 16:41:16 +0200 | [diff] [blame] | 179 | static void dpi_config_lcd_manager(struct omap_overlay_manager *mgr) |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 180 | { |
Archit Taneja | 5cf9a26 | 2012-06-29 14:19:13 +0530 | [diff] [blame] | 181 | dpi.mgr_config.io_pad_mode = DSS_IO_PAD_MODE_BYPASS; |
Archit Taneja | 569969d | 2011-08-22 17:41:57 +0530 | [diff] [blame] | 182 | |
Archit Taneja | 5cf9a26 | 2012-06-29 14:19:13 +0530 | [diff] [blame] | 183 | dpi.mgr_config.stallmode = false; |
| 184 | dpi.mgr_config.fifohandcheck = false; |
| 185 | |
Archit Taneja | c6b393d | 2012-07-06 15:30:52 +0530 | [diff] [blame] | 186 | dpi.mgr_config.video_port_width = dpi.data_lines; |
Archit Taneja | 5cf9a26 | 2012-06-29 14:19:13 +0530 | [diff] [blame] | 187 | |
| 188 | dpi.mgr_config.lcden_sig_polarity = 0; |
| 189 | |
Archit Taneja | 5d512fc | 2012-09-07 17:53:38 +0530 | [diff] [blame] | 190 | dss_mgr_set_lcd_config(mgr, &dpi.mgr_config); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 191 | } |
| 192 | |
Tomi Valkeinen | 37ac60e | 2010-01-12 15:12:07 +0200 | [diff] [blame] | 193 | int omapdss_dpi_display_enable(struct omap_dss_device *dssdev) |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 194 | { |
Tomi Valkeinen | 03a0d1e | 2012-11-27 16:41:16 +0200 | [diff] [blame] | 195 | struct omap_dss_output *out = &dpi.output; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 196 | int r; |
| 197 | |
Archit Taneja | c8a5e4e | 2012-07-05 12:52:46 +0530 | [diff] [blame] | 198 | mutex_lock(&dpi.lock); |
| 199 | |
Chandrabhanu Mahapatra | 195e672 | 2012-08-22 11:44:06 +0530 | [diff] [blame] | 200 | if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI) && !dpi.vdds_dsi_reg) { |
Russell King | 4041071 | 2012-02-07 09:44:55 +0000 | [diff] [blame] | 201 | DSSERR("no VDSS_DSI regulator\n"); |
Archit Taneja | c8a5e4e | 2012-07-05 12:52:46 +0530 | [diff] [blame] | 202 | r = -ENODEV; |
| 203 | goto err_no_reg; |
Russell King | 4041071 | 2012-02-07 09:44:55 +0000 | [diff] [blame] | 204 | } |
| 205 | |
Archit Taneja | 5d512fc | 2012-09-07 17:53:38 +0530 | [diff] [blame] | 206 | if (out == NULL || out->manager == NULL) { |
| 207 | DSSERR("failed to enable display: no output/manager\n"); |
Archit Taneja | c8a5e4e | 2012-07-05 12:52:46 +0530 | [diff] [blame] | 208 | r = -ENODEV; |
Archit Taneja | 5d512fc | 2012-09-07 17:53:38 +0530 | [diff] [blame] | 209 | goto err_no_out_mgr; |
Tomi Valkeinen | 05e1d60 | 2011-06-23 16:38:21 +0300 | [diff] [blame] | 210 | } |
| 211 | |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 212 | r = omap_dss_start_device(dssdev); |
| 213 | if (r) { |
| 214 | DSSERR("failed to start device\n"); |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 215 | goto err_start_dev; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 216 | } |
| 217 | |
Chandrabhanu Mahapatra | 195e672 | 2012-08-22 11:44:06 +0530 | [diff] [blame] | 218 | if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI)) { |
Tomi Valkeinen | 8a2cfea | 2010-02-04 17:03:41 +0200 | [diff] [blame] | 219 | r = regulator_enable(dpi.vdds_dsi_reg); |
| 220 | if (r) |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 221 | goto err_reg_enable; |
Tomi Valkeinen | 8a2cfea | 2010-02-04 17:03:41 +0200 | [diff] [blame] | 222 | } |
| 223 | |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 224 | r = dispc_runtime_get(); |
| 225 | if (r) |
| 226 | goto err_get_dispc; |
| 227 | |
Tomi Valkeinen | 03a0d1e | 2012-11-27 16:41:16 +0200 | [diff] [blame] | 228 | r = dss_dpi_select_source(out->manager->id); |
Tomi Valkeinen | de09e45 | 2012-09-21 12:09:54 +0300 | [diff] [blame] | 229 | if (r) |
| 230 | goto err_src_sel; |
| 231 | |
Tomi Valkeinen | 8a3db40 | 2012-10-22 16:03:39 +0300 | [diff] [blame] | 232 | if (dpi.dsidev) { |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 233 | r = dsi_runtime_get(dpi.dsidev); |
| 234 | if (r) |
| 235 | goto err_get_dsi; |
| 236 | |
Archit Taneja | a72b64b | 2011-05-12 17:26:26 +0530 | [diff] [blame] | 237 | r = dsi_pll_init(dpi.dsidev, 0, 1); |
Archit Taneja | 7636b3b | 2011-04-12 13:52:26 +0530 | [diff] [blame] | 238 | if (r) |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 239 | goto err_dsi_pll_init; |
Archit Taneja | 7636b3b | 2011-04-12 13:52:26 +0530 | [diff] [blame] | 240 | } |
| 241 | |
Tomi Valkeinen | 03a0d1e | 2012-11-27 16:41:16 +0200 | [diff] [blame] | 242 | r = dpi_set_mode(out->manager); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 243 | if (r) |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 244 | goto err_set_mode; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 245 | |
Tomi Valkeinen | 03a0d1e | 2012-11-27 16:41:16 +0200 | [diff] [blame] | 246 | dpi_config_lcd_manager(out->manager); |
Archit Taneja | 5cf9a26 | 2012-06-29 14:19:13 +0530 | [diff] [blame] | 247 | |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 248 | mdelay(2); |
| 249 | |
Archit Taneja | 5d512fc | 2012-09-07 17:53:38 +0530 | [diff] [blame] | 250 | r = dss_mgr_enable(out->manager); |
Tomi Valkeinen | 33ca237 | 2011-11-21 13:42:58 +0200 | [diff] [blame] | 251 | if (r) |
| 252 | goto err_mgr_enable; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 253 | |
Archit Taneja | c8a5e4e | 2012-07-05 12:52:46 +0530 | [diff] [blame] | 254 | mutex_unlock(&dpi.lock); |
| 255 | |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 256 | return 0; |
| 257 | |
Tomi Valkeinen | 33ca237 | 2011-11-21 13:42:58 +0200 | [diff] [blame] | 258 | err_mgr_enable: |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 259 | err_set_mode: |
Tomi Valkeinen | 8a3db40 | 2012-10-22 16:03:39 +0300 | [diff] [blame] | 260 | if (dpi.dsidev) |
Tomi Valkeinen | 19077a7 | 2011-05-18 11:33:44 +0300 | [diff] [blame] | 261 | dsi_pll_uninit(dpi.dsidev, true); |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 262 | err_dsi_pll_init: |
Tomi Valkeinen | 8a3db40 | 2012-10-22 16:03:39 +0300 | [diff] [blame] | 263 | if (dpi.dsidev) |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 264 | dsi_runtime_put(dpi.dsidev); |
| 265 | err_get_dsi: |
Tomi Valkeinen | de09e45 | 2012-09-21 12:09:54 +0300 | [diff] [blame] | 266 | err_src_sel: |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 267 | dispc_runtime_put(); |
| 268 | err_get_dispc: |
Chandrabhanu Mahapatra | 195e672 | 2012-08-22 11:44:06 +0530 | [diff] [blame] | 269 | if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI)) |
Tomi Valkeinen | 8a2cfea | 2010-02-04 17:03:41 +0200 | [diff] [blame] | 270 | regulator_disable(dpi.vdds_dsi_reg); |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 271 | err_reg_enable: |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 272 | omap_dss_stop_device(dssdev); |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 273 | err_start_dev: |
Archit Taneja | 5d512fc | 2012-09-07 17:53:38 +0530 | [diff] [blame] | 274 | err_no_out_mgr: |
Archit Taneja | c8a5e4e | 2012-07-05 12:52:46 +0530 | [diff] [blame] | 275 | err_no_reg: |
| 276 | mutex_unlock(&dpi.lock); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 277 | return r; |
| 278 | } |
Tomi Valkeinen | 37ac60e | 2010-01-12 15:12:07 +0200 | [diff] [blame] | 279 | EXPORT_SYMBOL(omapdss_dpi_display_enable); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 280 | |
Tomi Valkeinen | 37ac60e | 2010-01-12 15:12:07 +0200 | [diff] [blame] | 281 | void omapdss_dpi_display_disable(struct omap_dss_device *dssdev) |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 282 | { |
Tomi Valkeinen | 03a0d1e | 2012-11-27 16:41:16 +0200 | [diff] [blame] | 283 | struct omap_overlay_manager *mgr = dpi.output.manager; |
Archit Taneja | 5d512fc | 2012-09-07 17:53:38 +0530 | [diff] [blame] | 284 | |
Archit Taneja | c8a5e4e | 2012-07-05 12:52:46 +0530 | [diff] [blame] | 285 | mutex_lock(&dpi.lock); |
| 286 | |
Archit Taneja | 5d512fc | 2012-09-07 17:53:38 +0530 | [diff] [blame] | 287 | dss_mgr_disable(mgr); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 288 | |
Tomi Valkeinen | 8a3db40 | 2012-10-22 16:03:39 +0300 | [diff] [blame] | 289 | if (dpi.dsidev) { |
Tomi Valkeinen | a5b8399 | 2012-10-22 16:58:36 +0300 | [diff] [blame] | 290 | dss_select_lcd_clk_source(mgr->id, OMAP_DSS_CLK_SRC_FCK); |
Archit Taneja | a72b64b | 2011-05-12 17:26:26 +0530 | [diff] [blame] | 291 | dsi_pll_uninit(dpi.dsidev, true); |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 292 | dsi_runtime_put(dpi.dsidev); |
Archit Taneja | 7636b3b | 2011-04-12 13:52:26 +0530 | [diff] [blame] | 293 | } |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 294 | |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 295 | dispc_runtime_put(); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 296 | |
Chandrabhanu Mahapatra | 195e672 | 2012-08-22 11:44:06 +0530 | [diff] [blame] | 297 | if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI)) |
Tomi Valkeinen | 8a2cfea | 2010-02-04 17:03:41 +0200 | [diff] [blame] | 298 | regulator_disable(dpi.vdds_dsi_reg); |
| 299 | |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 300 | omap_dss_stop_device(dssdev); |
Archit Taneja | c8a5e4e | 2012-07-05 12:52:46 +0530 | [diff] [blame] | 301 | |
| 302 | mutex_unlock(&dpi.lock); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 303 | } |
Tomi Valkeinen | 37ac60e | 2010-01-12 15:12:07 +0200 | [diff] [blame] | 304 | EXPORT_SYMBOL(omapdss_dpi_display_disable); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 305 | |
Archit Taneja | c499144 | 2012-08-08 14:28:54 +0530 | [diff] [blame] | 306 | void omapdss_dpi_set_timings(struct omap_dss_device *dssdev, |
| 307 | struct omap_video_timings *timings) |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 308 | { |
| 309 | DSSDBG("dpi_set_timings\n"); |
Archit Taneja | c8a5e4e | 2012-07-05 12:52:46 +0530 | [diff] [blame] | 310 | |
| 311 | mutex_lock(&dpi.lock); |
| 312 | |
Archit Taneja | c499144 | 2012-08-08 14:28:54 +0530 | [diff] [blame] | 313 | dpi.timings = *timings; |
Archit Taneja | c499144 | 2012-08-08 14:28:54 +0530 | [diff] [blame] | 314 | |
Archit Taneja | c8a5e4e | 2012-07-05 12:52:46 +0530 | [diff] [blame] | 315 | mutex_unlock(&dpi.lock); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 316 | } |
Archit Taneja | c499144 | 2012-08-08 14:28:54 +0530 | [diff] [blame] | 317 | EXPORT_SYMBOL(omapdss_dpi_set_timings); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 318 | |
Tomi Valkeinen | 69b2048 | 2010-01-20 12:11:25 +0200 | [diff] [blame] | 319 | int dpi_check_timings(struct omap_dss_device *dssdev, |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 320 | struct omap_video_timings *timings) |
| 321 | { |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 322 | int r; |
Tomi Valkeinen | 03a0d1e | 2012-11-27 16:41:16 +0200 | [diff] [blame] | 323 | struct omap_overlay_manager *mgr = dpi.output.manager; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 324 | int lck_div, pck_div; |
| 325 | unsigned long fck; |
| 326 | unsigned long pck; |
Archit Taneja | 7636b3b | 2011-04-12 13:52:26 +0530 | [diff] [blame] | 327 | struct dispc_clock_info dispc_cinfo; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 328 | |
Tomi Valkeinen | 8b09551 | 2012-10-24 13:27:02 +0300 | [diff] [blame] | 329 | if (mgr && !dispc_mgr_timings_ok(mgr->id, timings)) |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 330 | return -EINVAL; |
| 331 | |
| 332 | if (timings->pixel_clock == 0) |
| 333 | return -EINVAL; |
| 334 | |
Tomi Valkeinen | 8a3db40 | 2012-10-22 16:03:39 +0300 | [diff] [blame] | 335 | if (dpi.dsidev) { |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 336 | struct dsi_clock_info dsi_cinfo; |
Archit Taneja | 6d523e7 | 2012-06-21 09:33:55 +0530 | [diff] [blame] | 337 | r = dsi_pll_calc_clock_div_pck(dpi.dsidev, |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 338 | timings->pixel_clock * 1000, |
| 339 | &dsi_cinfo, &dispc_cinfo); |
| 340 | |
| 341 | if (r) |
| 342 | return r; |
| 343 | |
Archit Taneja | 1bb4783 | 2011-02-24 14:17:30 +0530 | [diff] [blame] | 344 | fck = dsi_cinfo.dsi_pll_hsdiv_dispc_clk; |
Archit Taneja | 7636b3b | 2011-04-12 13:52:26 +0530 | [diff] [blame] | 345 | } else { |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 346 | struct dss_clock_info dss_cinfo; |
Archit Taneja | 6d523e7 | 2012-06-21 09:33:55 +0530 | [diff] [blame] | 347 | r = dss_calc_clock_div(timings->pixel_clock * 1000, |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 348 | &dss_cinfo, &dispc_cinfo); |
| 349 | |
| 350 | if (r) |
| 351 | return r; |
| 352 | |
| 353 | fck = dss_cinfo.fck; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 354 | } |
Archit Taneja | 7636b3b | 2011-04-12 13:52:26 +0530 | [diff] [blame] | 355 | |
| 356 | lck_div = dispc_cinfo.lck_div; |
| 357 | pck_div = dispc_cinfo.pck_div; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 358 | |
| 359 | pck = fck / lck_div / pck_div / 1000; |
| 360 | |
| 361 | timings->pixel_clock = pck; |
| 362 | |
| 363 | return 0; |
| 364 | } |
Tomi Valkeinen | 69b2048 | 2010-01-20 12:11:25 +0200 | [diff] [blame] | 365 | EXPORT_SYMBOL(dpi_check_timings); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 366 | |
Archit Taneja | c6b393d | 2012-07-06 15:30:52 +0530 | [diff] [blame] | 367 | void omapdss_dpi_set_data_lines(struct omap_dss_device *dssdev, int data_lines) |
| 368 | { |
| 369 | mutex_lock(&dpi.lock); |
| 370 | |
| 371 | dpi.data_lines = data_lines; |
| 372 | |
| 373 | mutex_unlock(&dpi.lock); |
| 374 | } |
| 375 | EXPORT_SYMBOL(omapdss_dpi_set_data_lines); |
| 376 | |
Tomi Valkeinen | 6061675 | 2012-10-30 12:57:43 +0200 | [diff] [blame] | 377 | static int __init dpi_verify_dsi_pll(struct platform_device *dsidev) |
| 378 | { |
| 379 | int r; |
| 380 | |
| 381 | /* do initial setup with the PLL to see if it is operational */ |
| 382 | |
| 383 | r = dsi_runtime_get(dsidev); |
| 384 | if (r) |
| 385 | return r; |
| 386 | |
| 387 | r = dsi_pll_init(dsidev, 0, 1); |
| 388 | if (r) { |
| 389 | dsi_runtime_put(dsidev); |
| 390 | return r; |
| 391 | } |
| 392 | |
| 393 | dsi_pll_uninit(dsidev, true); |
| 394 | dsi_runtime_put(dsidev); |
| 395 | |
| 396 | return 0; |
| 397 | } |
| 398 | |
Tomi Valkeinen | 9d8232a | 2012-03-01 16:58:39 +0200 | [diff] [blame] | 399 | static int __init dpi_init_display(struct omap_dss_device *dssdev) |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 400 | { |
Tomi Valkeinen | 0e8276e | 2012-10-22 16:12:58 +0300 | [diff] [blame] | 401 | struct platform_device *dsidev; |
| 402 | |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 403 | DSSDBG("init_display\n"); |
| 404 | |
Chandrabhanu Mahapatra | 195e672 | 2012-08-22 11:44:06 +0530 | [diff] [blame] | 405 | if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI) && |
| 406 | dpi.vdds_dsi_reg == NULL) { |
Tomi Valkeinen | 5f42f2c | 2011-02-22 15:53:46 +0200 | [diff] [blame] | 407 | struct regulator *vdds_dsi; |
| 408 | |
| 409 | vdds_dsi = dss_get_vdds_dsi(); |
| 410 | |
| 411 | if (IS_ERR(vdds_dsi)) { |
| 412 | DSSERR("can't get VDDS_DSI regulator\n"); |
| 413 | return PTR_ERR(vdds_dsi); |
| 414 | } |
| 415 | |
| 416 | dpi.vdds_dsi_reg = vdds_dsi; |
| 417 | } |
| 418 | |
Tomi Valkeinen | 0e8276e | 2012-10-22 16:12:58 +0300 | [diff] [blame] | 419 | /* |
| 420 | * XXX We shouldn't need dssdev->channel for this. The dsi pll clock |
| 421 | * source for DPI is SoC integration detail, not something that should |
| 422 | * be configured in the dssdev |
| 423 | */ |
| 424 | dsidev = dpi_get_dsidev(dssdev->channel); |
Tomi Valkeinen | 6061675 | 2012-10-30 12:57:43 +0200 | [diff] [blame] | 425 | |
Tomi Valkeinen | 1de8e12 | 2012-11-12 16:52:11 +0200 | [diff] [blame] | 426 | if (dsidev && dpi_verify_dsi_pll(dsidev)) { |
Tomi Valkeinen | 0e8276e | 2012-10-22 16:12:58 +0300 | [diff] [blame] | 427 | dsidev = NULL; |
| 428 | DSSWARN("DSI PLL not operational\n"); |
Archit Taneja | a72b64b | 2011-05-12 17:26:26 +0530 | [diff] [blame] | 429 | } |
| 430 | |
Tomi Valkeinen | 0e8276e | 2012-10-22 16:12:58 +0300 | [diff] [blame] | 431 | if (dsidev) |
| 432 | DSSDBG("using DSI PLL for DPI clock\n"); |
| 433 | |
| 434 | dpi.dsidev = dsidev; |
| 435 | |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 436 | return 0; |
| 437 | } |
| 438 | |
Tomi Valkeinen | 1521653 | 2012-09-06 14:29:31 +0300 | [diff] [blame] | 439 | static struct omap_dss_device * __init dpi_find_dssdev(struct platform_device *pdev) |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 440 | { |
Tomi Valkeinen | 35deca3 | 2012-03-01 15:45:53 +0200 | [diff] [blame] | 441 | struct omap_dss_board_info *pdata = pdev->dev.platform_data; |
Tomi Valkeinen | 2bbcce5 | 2012-10-29 12:40:46 +0200 | [diff] [blame] | 442 | const char *def_disp_name = omapdss_get_default_display_name(); |
Tomi Valkeinen | 1521653 | 2012-09-06 14:29:31 +0300 | [diff] [blame] | 443 | struct omap_dss_device *def_dssdev; |
| 444 | int i; |
| 445 | |
| 446 | def_dssdev = NULL; |
Tomi Valkeinen | 35deca3 | 2012-03-01 15:45:53 +0200 | [diff] [blame] | 447 | |
| 448 | for (i = 0; i < pdata->num_devices; ++i) { |
| 449 | struct omap_dss_device *dssdev = pdata->devices[i]; |
| 450 | |
| 451 | if (dssdev->type != OMAP_DISPLAY_TYPE_DPI) |
| 452 | continue; |
| 453 | |
Tomi Valkeinen | 1521653 | 2012-09-06 14:29:31 +0300 | [diff] [blame] | 454 | if (def_dssdev == NULL) |
| 455 | def_dssdev = dssdev; |
Tomi Valkeinen | 9d8232a | 2012-03-01 16:58:39 +0200 | [diff] [blame] | 456 | |
Tomi Valkeinen | 1521653 | 2012-09-06 14:29:31 +0300 | [diff] [blame] | 457 | if (def_disp_name != NULL && |
| 458 | strcmp(dssdev->name, def_disp_name) == 0) { |
| 459 | def_dssdev = dssdev; |
| 460 | break; |
| 461 | } |
| 462 | } |
| 463 | |
| 464 | return def_dssdev; |
| 465 | } |
| 466 | |
Tomi Valkeinen | 5274484 | 2012-09-10 13:58:29 +0300 | [diff] [blame] | 467 | static void __init dpi_probe_pdata(struct platform_device *dpidev) |
Tomi Valkeinen | 1521653 | 2012-09-06 14:29:31 +0300 | [diff] [blame] | 468 | { |
Tomi Valkeinen | 5274484 | 2012-09-10 13:58:29 +0300 | [diff] [blame] | 469 | struct omap_dss_device *plat_dssdev; |
Tomi Valkeinen | 1521653 | 2012-09-06 14:29:31 +0300 | [diff] [blame] | 470 | struct omap_dss_device *dssdev; |
| 471 | int r; |
| 472 | |
Tomi Valkeinen | 5274484 | 2012-09-10 13:58:29 +0300 | [diff] [blame] | 473 | plat_dssdev = dpi_find_dssdev(dpidev); |
Tomi Valkeinen | 1521653 | 2012-09-06 14:29:31 +0300 | [diff] [blame] | 474 | |
Tomi Valkeinen | 5274484 | 2012-09-10 13:58:29 +0300 | [diff] [blame] | 475 | if (!plat_dssdev) |
| 476 | return; |
| 477 | |
| 478 | dssdev = dss_alloc_and_init_device(&dpidev->dev); |
Tomi Valkeinen | 1521653 | 2012-09-06 14:29:31 +0300 | [diff] [blame] | 479 | if (!dssdev) |
| 480 | return; |
| 481 | |
Tomi Valkeinen | 5274484 | 2012-09-10 13:58:29 +0300 | [diff] [blame] | 482 | dss_copy_device_pdata(dssdev, plat_dssdev); |
| 483 | |
Tomi Valkeinen | 1521653 | 2012-09-06 14:29:31 +0300 | [diff] [blame] | 484 | r = dpi_init_display(dssdev); |
| 485 | if (r) { |
| 486 | DSSERR("device %s init failed: %d\n", dssdev->name, r); |
Tomi Valkeinen | 5274484 | 2012-09-10 13:58:29 +0300 | [diff] [blame] | 487 | dss_put_device(dssdev); |
Tomi Valkeinen | 1521653 | 2012-09-06 14:29:31 +0300 | [diff] [blame] | 488 | return; |
| 489 | } |
| 490 | |
Tomi Valkeinen | 486c0e1 | 2012-12-07 12:50:08 +0200 | [diff] [blame] | 491 | r = omapdss_output_set_device(&dpi.output, dssdev); |
| 492 | if (r) { |
| 493 | DSSERR("failed to connect output to new device: %s\n", |
| 494 | dssdev->name); |
| 495 | dss_put_device(dssdev); |
| 496 | return; |
| 497 | } |
| 498 | |
Tomi Valkeinen | 5274484 | 2012-09-10 13:58:29 +0300 | [diff] [blame] | 499 | r = dss_add_device(dssdev); |
Tomi Valkeinen | 1521653 | 2012-09-06 14:29:31 +0300 | [diff] [blame] | 500 | if (r) { |
| 501 | DSSERR("device %s register failed: %d\n", dssdev->name, r); |
Tomi Valkeinen | 486c0e1 | 2012-12-07 12:50:08 +0200 | [diff] [blame] | 502 | omapdss_output_unset_device(&dpi.output); |
Tomi Valkeinen | 5274484 | 2012-09-10 13:58:29 +0300 | [diff] [blame] | 503 | dss_put_device(dssdev); |
Tomi Valkeinen | 1521653 | 2012-09-06 14:29:31 +0300 | [diff] [blame] | 504 | return; |
Tomi Valkeinen | 35deca3 | 2012-03-01 15:45:53 +0200 | [diff] [blame] | 505 | } |
Tomi Valkeinen | 38f3daf | 2012-05-02 14:55:12 +0300 | [diff] [blame] | 506 | } |
| 507 | |
Archit Taneja | 81b87f5 | 2012-09-26 16:30:49 +0530 | [diff] [blame] | 508 | static void __init dpi_init_output(struct platform_device *pdev) |
| 509 | { |
| 510 | struct omap_dss_output *out = &dpi.output; |
| 511 | |
| 512 | out->pdev = pdev; |
| 513 | out->id = OMAP_DSS_OUTPUT_DPI; |
| 514 | out->type = OMAP_DISPLAY_TYPE_DPI; |
Tomi Valkeinen | 7286a08 | 2013-02-18 13:06:01 +0200 | [diff] [blame^] | 515 | out->name = "dpi.0"; |
Archit Taneja | 81b87f5 | 2012-09-26 16:30:49 +0530 | [diff] [blame] | 516 | |
| 517 | dss_register_output(out); |
| 518 | } |
| 519 | |
| 520 | static void __exit dpi_uninit_output(struct platform_device *pdev) |
| 521 | { |
| 522 | struct omap_dss_output *out = &dpi.output; |
| 523 | |
| 524 | dss_unregister_output(out); |
| 525 | } |
| 526 | |
Tomi Valkeinen | 38f3daf | 2012-05-02 14:55:12 +0300 | [diff] [blame] | 527 | static int __init omap_dpi_probe(struct platform_device *pdev) |
| 528 | { |
Archit Taneja | c8a5e4e | 2012-07-05 12:52:46 +0530 | [diff] [blame] | 529 | mutex_init(&dpi.lock); |
| 530 | |
Archit Taneja | 81b87f5 | 2012-09-26 16:30:49 +0530 | [diff] [blame] | 531 | dpi_init_output(pdev); |
| 532 | |
Tomi Valkeinen | 38f3daf | 2012-05-02 14:55:12 +0300 | [diff] [blame] | 533 | dpi_probe_pdata(pdev); |
Tomi Valkeinen | 35deca3 | 2012-03-01 15:45:53 +0200 | [diff] [blame] | 534 | |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 535 | return 0; |
| 536 | } |
| 537 | |
Tomi Valkeinen | 6e7e8f0 | 2012-02-17 17:41:13 +0200 | [diff] [blame] | 538 | static int __exit omap_dpi_remove(struct platform_device *pdev) |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 539 | { |
Tomi Valkeinen | 5274484 | 2012-09-10 13:58:29 +0300 | [diff] [blame] | 540 | dss_unregister_child_devices(&pdev->dev); |
Tomi Valkeinen | 35deca3 | 2012-03-01 15:45:53 +0200 | [diff] [blame] | 541 | |
Archit Taneja | 81b87f5 | 2012-09-26 16:30:49 +0530 | [diff] [blame] | 542 | dpi_uninit_output(pdev); |
| 543 | |
Tomi Valkeinen | a57dd4f | 2012-02-20 16:57:37 +0200 | [diff] [blame] | 544 | return 0; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 545 | } |
| 546 | |
Tomi Valkeinen | a57dd4f | 2012-02-20 16:57:37 +0200 | [diff] [blame] | 547 | static struct platform_driver omap_dpi_driver = { |
Tomi Valkeinen | 6e7e8f0 | 2012-02-17 17:41:13 +0200 | [diff] [blame] | 548 | .remove = __exit_p(omap_dpi_remove), |
Tomi Valkeinen | a57dd4f | 2012-02-20 16:57:37 +0200 | [diff] [blame] | 549 | .driver = { |
| 550 | .name = "omapdss_dpi", |
| 551 | .owner = THIS_MODULE, |
| 552 | }, |
| 553 | }; |
| 554 | |
Tomi Valkeinen | 6e7e8f0 | 2012-02-17 17:41:13 +0200 | [diff] [blame] | 555 | int __init dpi_init_platform_driver(void) |
Tomi Valkeinen | a57dd4f | 2012-02-20 16:57:37 +0200 | [diff] [blame] | 556 | { |
Tomi Valkeinen | 61055d4 | 2012-03-07 12:53:38 +0200 | [diff] [blame] | 557 | return platform_driver_probe(&omap_dpi_driver, omap_dpi_probe); |
Tomi Valkeinen | a57dd4f | 2012-02-20 16:57:37 +0200 | [diff] [blame] | 558 | } |
| 559 | |
Tomi Valkeinen | 6e7e8f0 | 2012-02-17 17:41:13 +0200 | [diff] [blame] | 560 | void __exit dpi_uninit_platform_driver(void) |
Tomi Valkeinen | a57dd4f | 2012-02-20 16:57:37 +0200 | [diff] [blame] | 561 | { |
| 562 | platform_driver_unregister(&omap_dpi_driver); |
| 563 | } |