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 | |
Archit Taneja | 6d523e7 | 2012-06-21 09:33:55 +0530 | [diff] [blame] | 94 | static int dpi_set_dsi_clk(struct omap_dss_device *dssdev, |
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 | { |
Tomi Valkeinen | a5b8399 | 2012-10-22 16:58:36 +0300 | [diff] [blame] | 98 | struct omap_overlay_manager *mgr = dssdev->output->manager; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 99 | struct dsi_clock_info dsi_cinfo; |
| 100 | struct dispc_clock_info dispc_cinfo; |
| 101 | int r; |
| 102 | |
Archit Taneja | 6d523e7 | 2012-06-21 09:33:55 +0530 | [diff] [blame] | 103 | r = dsi_pll_calc_clock_div_pck(dpi.dsidev, pck_req, &dsi_cinfo, |
| 104 | &dispc_cinfo); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 105 | if (r) |
| 106 | return r; |
| 107 | |
Archit Taneja | a72b64b | 2011-05-12 17:26:26 +0530 | [diff] [blame] | 108 | r = dsi_pll_set_clock_div(dpi.dsidev, &dsi_cinfo); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 109 | if (r) |
| 110 | return r; |
| 111 | |
Tomi Valkeinen | a5b8399 | 2012-10-22 16:58:36 +0300 | [diff] [blame] | 112 | dss_select_lcd_clk_source(mgr->id, |
Tomi Valkeinen | 0e8276e | 2012-10-22 16:12:58 +0300 | [diff] [blame] | 113 | dpi_get_alt_clk_src(mgr->id)); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 114 | |
Archit Taneja | 5cf9a26 | 2012-06-29 14:19:13 +0530 | [diff] [blame] | 115 | dpi.mgr_config.clock_info = dispc_cinfo; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 116 | |
Archit Taneja | 1bb4783 | 2011-02-24 14:17:30 +0530 | [diff] [blame] | 117 | *fck = dsi_cinfo.dsi_pll_hsdiv_dispc_clk; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 118 | *lck_div = dispc_cinfo.lck_div; |
| 119 | *pck_div = dispc_cinfo.pck_div; |
| 120 | |
| 121 | return 0; |
| 122 | } |
Archit Taneja | 7636b3b | 2011-04-12 13:52:26 +0530 | [diff] [blame] | 123 | |
Archit Taneja | 6d523e7 | 2012-06-21 09:33:55 +0530 | [diff] [blame] | 124 | static int dpi_set_dispc_clk(struct omap_dss_device *dssdev, |
Sumit Semwal | ff1b2cd | 2010-12-02 11:27:11 +0000 | [diff] [blame] | 125 | unsigned long pck_req, unsigned long *fck, int *lck_div, |
| 126 | int *pck_div) |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 127 | { |
| 128 | struct dss_clock_info dss_cinfo; |
| 129 | struct dispc_clock_info dispc_cinfo; |
| 130 | int r; |
| 131 | |
Archit Taneja | 6d523e7 | 2012-06-21 09:33:55 +0530 | [diff] [blame] | 132 | r = dss_calc_clock_div(pck_req, &dss_cinfo, &dispc_cinfo); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 133 | if (r) |
| 134 | return r; |
| 135 | |
| 136 | r = dss_set_clock_div(&dss_cinfo); |
| 137 | if (r) |
| 138 | return r; |
| 139 | |
Archit Taneja | 5cf9a26 | 2012-06-29 14:19:13 +0530 | [diff] [blame] | 140 | dpi.mgr_config.clock_info = dispc_cinfo; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 141 | |
| 142 | *fck = dss_cinfo.fck; |
| 143 | *lck_div = dispc_cinfo.lck_div; |
| 144 | *pck_div = dispc_cinfo.pck_div; |
| 145 | |
| 146 | return 0; |
| 147 | } |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 148 | |
| 149 | static int dpi_set_mode(struct omap_dss_device *dssdev) |
| 150 | { |
Archit Taneja | c499144 | 2012-08-08 14:28:54 +0530 | [diff] [blame] | 151 | struct omap_video_timings *t = &dpi.timings; |
Archit Taneja | 5d512fc | 2012-09-07 17:53:38 +0530 | [diff] [blame] | 152 | struct omap_overlay_manager *mgr = dssdev->output->manager; |
Archit Taneja | 7636b3b | 2011-04-12 13:52:26 +0530 | [diff] [blame] | 153 | int lck_div = 0, pck_div = 0; |
| 154 | unsigned long fck = 0; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 155 | unsigned long pck; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 156 | int r = 0; |
| 157 | |
Tomi Valkeinen | 8a3db40 | 2012-10-22 16:03:39 +0300 | [diff] [blame] | 158 | if (dpi.dsidev) |
Archit Taneja | 6d523e7 | 2012-06-21 09:33:55 +0530 | [diff] [blame] | 159 | r = dpi_set_dsi_clk(dssdev, t->pixel_clock * 1000, &fck, |
| 160 | &lck_div, &pck_div); |
Archit Taneja | 7636b3b | 2011-04-12 13:52:26 +0530 | [diff] [blame] | 161 | else |
Archit Taneja | 6d523e7 | 2012-06-21 09:33:55 +0530 | [diff] [blame] | 162 | r = dpi_set_dispc_clk(dssdev, t->pixel_clock * 1000, &fck, |
| 163 | &lck_div, &pck_div); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 164 | if (r) |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 165 | return r; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 166 | |
| 167 | pck = fck / lck_div / pck_div / 1000; |
| 168 | |
| 169 | if (pck != t->pixel_clock) { |
| 170 | DSSWARN("Could not find exact pixel clock. " |
| 171 | "Requested %d kHz, got %lu kHz\n", |
| 172 | t->pixel_clock, pck); |
| 173 | |
| 174 | t->pixel_clock = pck; |
| 175 | } |
| 176 | |
Archit Taneja | 5d512fc | 2012-09-07 17:53:38 +0530 | [diff] [blame] | 177 | dss_mgr_set_timings(mgr, t); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 178 | |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 179 | return 0; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 180 | } |
| 181 | |
Archit Taneja | 5cf9a26 | 2012-06-29 14:19:13 +0530 | [diff] [blame] | 182 | static void dpi_config_lcd_manager(struct omap_dss_device *dssdev) |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 183 | { |
Archit Taneja | 5d512fc | 2012-09-07 17:53:38 +0530 | [diff] [blame] | 184 | struct omap_overlay_manager *mgr = dssdev->output->manager; |
| 185 | |
Archit Taneja | 5cf9a26 | 2012-06-29 14:19:13 +0530 | [diff] [blame] | 186 | dpi.mgr_config.io_pad_mode = DSS_IO_PAD_MODE_BYPASS; |
Archit Taneja | 569969d | 2011-08-22 17:41:57 +0530 | [diff] [blame] | 187 | |
Archit Taneja | 5cf9a26 | 2012-06-29 14:19:13 +0530 | [diff] [blame] | 188 | dpi.mgr_config.stallmode = false; |
| 189 | dpi.mgr_config.fifohandcheck = false; |
| 190 | |
Archit Taneja | c6b393d | 2012-07-06 15:30:52 +0530 | [diff] [blame] | 191 | dpi.mgr_config.video_port_width = dpi.data_lines; |
Archit Taneja | 5cf9a26 | 2012-06-29 14:19:13 +0530 | [diff] [blame] | 192 | |
| 193 | dpi.mgr_config.lcden_sig_polarity = 0; |
| 194 | |
Archit Taneja | 5d512fc | 2012-09-07 17:53:38 +0530 | [diff] [blame] | 195 | dss_mgr_set_lcd_config(mgr, &dpi.mgr_config); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 196 | } |
| 197 | |
Tomi Valkeinen | 37ac60e | 2010-01-12 15:12:07 +0200 | [diff] [blame] | 198 | int omapdss_dpi_display_enable(struct omap_dss_device *dssdev) |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 199 | { |
Archit Taneja | 5d512fc | 2012-09-07 17:53:38 +0530 | [diff] [blame] | 200 | struct omap_dss_output *out = dssdev->output; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 201 | int r; |
| 202 | |
Archit Taneja | c8a5e4e | 2012-07-05 12:52:46 +0530 | [diff] [blame] | 203 | mutex_lock(&dpi.lock); |
| 204 | |
Chandrabhanu Mahapatra | 195e672 | 2012-08-22 11:44:06 +0530 | [diff] [blame] | 205 | 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] | 206 | DSSERR("no VDSS_DSI regulator\n"); |
Archit Taneja | c8a5e4e | 2012-07-05 12:52:46 +0530 | [diff] [blame] | 207 | r = -ENODEV; |
| 208 | goto err_no_reg; |
Russell King | 4041071 | 2012-02-07 09:44:55 +0000 | [diff] [blame] | 209 | } |
| 210 | |
Archit Taneja | 5d512fc | 2012-09-07 17:53:38 +0530 | [diff] [blame] | 211 | if (out == NULL || out->manager == NULL) { |
| 212 | DSSERR("failed to enable display: no output/manager\n"); |
Archit Taneja | c8a5e4e | 2012-07-05 12:52:46 +0530 | [diff] [blame] | 213 | r = -ENODEV; |
Archit Taneja | 5d512fc | 2012-09-07 17:53:38 +0530 | [diff] [blame] | 214 | goto err_no_out_mgr; |
Tomi Valkeinen | 05e1d60 | 2011-06-23 16:38:21 +0300 | [diff] [blame] | 215 | } |
| 216 | |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 217 | r = omap_dss_start_device(dssdev); |
| 218 | if (r) { |
| 219 | DSSERR("failed to start device\n"); |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 220 | goto err_start_dev; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 221 | } |
| 222 | |
Chandrabhanu Mahapatra | 195e672 | 2012-08-22 11:44:06 +0530 | [diff] [blame] | 223 | if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI)) { |
Tomi Valkeinen | 8a2cfea | 2010-02-04 17:03:41 +0200 | [diff] [blame] | 224 | r = regulator_enable(dpi.vdds_dsi_reg); |
| 225 | if (r) |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 226 | goto err_reg_enable; |
Tomi Valkeinen | 8a2cfea | 2010-02-04 17:03:41 +0200 | [diff] [blame] | 227 | } |
| 228 | |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 229 | r = dispc_runtime_get(); |
| 230 | if (r) |
| 231 | goto err_get_dispc; |
| 232 | |
Tomi Valkeinen | de09e45 | 2012-09-21 12:09:54 +0300 | [diff] [blame] | 233 | r = dss_dpi_select_source(dssdev->channel); |
| 234 | if (r) |
| 235 | goto err_src_sel; |
| 236 | |
Tomi Valkeinen | 8a3db40 | 2012-10-22 16:03:39 +0300 | [diff] [blame] | 237 | if (dpi.dsidev) { |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 238 | r = dsi_runtime_get(dpi.dsidev); |
| 239 | if (r) |
| 240 | goto err_get_dsi; |
| 241 | |
Archit Taneja | a72b64b | 2011-05-12 17:26:26 +0530 | [diff] [blame] | 242 | r = dsi_pll_init(dpi.dsidev, 0, 1); |
Archit Taneja | 7636b3b | 2011-04-12 13:52:26 +0530 | [diff] [blame] | 243 | if (r) |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 244 | goto err_dsi_pll_init; |
Archit Taneja | 7636b3b | 2011-04-12 13:52:26 +0530 | [diff] [blame] | 245 | } |
| 246 | |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 247 | r = dpi_set_mode(dssdev); |
| 248 | if (r) |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 249 | goto err_set_mode; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 250 | |
Archit Taneja | 5cf9a26 | 2012-06-29 14:19:13 +0530 | [diff] [blame] | 251 | dpi_config_lcd_manager(dssdev); |
| 252 | |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 253 | mdelay(2); |
| 254 | |
Archit Taneja | 5d512fc | 2012-09-07 17:53:38 +0530 | [diff] [blame] | 255 | r = dss_mgr_enable(out->manager); |
Tomi Valkeinen | 33ca237 | 2011-11-21 13:42:58 +0200 | [diff] [blame] | 256 | if (r) |
| 257 | goto err_mgr_enable; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 258 | |
Archit Taneja | c8a5e4e | 2012-07-05 12:52:46 +0530 | [diff] [blame] | 259 | mutex_unlock(&dpi.lock); |
| 260 | |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 261 | return 0; |
| 262 | |
Tomi Valkeinen | 33ca237 | 2011-11-21 13:42:58 +0200 | [diff] [blame] | 263 | err_mgr_enable: |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 264 | err_set_mode: |
Tomi Valkeinen | 8a3db40 | 2012-10-22 16:03:39 +0300 | [diff] [blame] | 265 | if (dpi.dsidev) |
Tomi Valkeinen | 19077a7 | 2011-05-18 11:33:44 +0300 | [diff] [blame] | 266 | dsi_pll_uninit(dpi.dsidev, true); |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 267 | err_dsi_pll_init: |
Tomi Valkeinen | 8a3db40 | 2012-10-22 16:03:39 +0300 | [diff] [blame] | 268 | if (dpi.dsidev) |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 269 | dsi_runtime_put(dpi.dsidev); |
| 270 | err_get_dsi: |
Tomi Valkeinen | de09e45 | 2012-09-21 12:09:54 +0300 | [diff] [blame] | 271 | err_src_sel: |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 272 | dispc_runtime_put(); |
| 273 | err_get_dispc: |
Chandrabhanu Mahapatra | 195e672 | 2012-08-22 11:44:06 +0530 | [diff] [blame] | 274 | if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI)) |
Tomi Valkeinen | 8a2cfea | 2010-02-04 17:03:41 +0200 | [diff] [blame] | 275 | regulator_disable(dpi.vdds_dsi_reg); |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 276 | err_reg_enable: |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 277 | omap_dss_stop_device(dssdev); |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 278 | err_start_dev: |
Archit Taneja | 5d512fc | 2012-09-07 17:53:38 +0530 | [diff] [blame] | 279 | err_no_out_mgr: |
Archit Taneja | c8a5e4e | 2012-07-05 12:52:46 +0530 | [diff] [blame] | 280 | err_no_reg: |
| 281 | mutex_unlock(&dpi.lock); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 282 | return r; |
| 283 | } |
Tomi Valkeinen | 37ac60e | 2010-01-12 15:12:07 +0200 | [diff] [blame] | 284 | EXPORT_SYMBOL(omapdss_dpi_display_enable); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 285 | |
Tomi Valkeinen | 37ac60e | 2010-01-12 15:12:07 +0200 | [diff] [blame] | 286 | void omapdss_dpi_display_disable(struct omap_dss_device *dssdev) |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 287 | { |
Archit Taneja | 5d512fc | 2012-09-07 17:53:38 +0530 | [diff] [blame] | 288 | struct omap_overlay_manager *mgr = dssdev->output->manager; |
| 289 | |
Archit Taneja | c8a5e4e | 2012-07-05 12:52:46 +0530 | [diff] [blame] | 290 | mutex_lock(&dpi.lock); |
| 291 | |
Archit Taneja | 5d512fc | 2012-09-07 17:53:38 +0530 | [diff] [blame] | 292 | dss_mgr_disable(mgr); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 293 | |
Tomi Valkeinen | 8a3db40 | 2012-10-22 16:03:39 +0300 | [diff] [blame] | 294 | if (dpi.dsidev) { |
Tomi Valkeinen | a5b8399 | 2012-10-22 16:58:36 +0300 | [diff] [blame] | 295 | dss_select_lcd_clk_source(mgr->id, OMAP_DSS_CLK_SRC_FCK); |
Archit Taneja | a72b64b | 2011-05-12 17:26:26 +0530 | [diff] [blame] | 296 | dsi_pll_uninit(dpi.dsidev, true); |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 297 | dsi_runtime_put(dpi.dsidev); |
Archit Taneja | 7636b3b | 2011-04-12 13:52:26 +0530 | [diff] [blame] | 298 | } |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 299 | |
Tomi Valkeinen | 4fbafaf | 2011-05-27 10:52:19 +0300 | [diff] [blame] | 300 | dispc_runtime_put(); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 301 | |
Chandrabhanu Mahapatra | 195e672 | 2012-08-22 11:44:06 +0530 | [diff] [blame] | 302 | if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI)) |
Tomi Valkeinen | 8a2cfea | 2010-02-04 17:03:41 +0200 | [diff] [blame] | 303 | regulator_disable(dpi.vdds_dsi_reg); |
| 304 | |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 305 | omap_dss_stop_device(dssdev); |
Archit Taneja | c8a5e4e | 2012-07-05 12:52:46 +0530 | [diff] [blame] | 306 | |
| 307 | mutex_unlock(&dpi.lock); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 308 | } |
Tomi Valkeinen | 37ac60e | 2010-01-12 15:12:07 +0200 | [diff] [blame] | 309 | EXPORT_SYMBOL(omapdss_dpi_display_disable); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 310 | |
Archit Taneja | c499144 | 2012-08-08 14:28:54 +0530 | [diff] [blame] | 311 | void omapdss_dpi_set_timings(struct omap_dss_device *dssdev, |
| 312 | struct omap_video_timings *timings) |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 313 | { |
| 314 | DSSDBG("dpi_set_timings\n"); |
Archit Taneja | c8a5e4e | 2012-07-05 12:52:46 +0530 | [diff] [blame] | 315 | |
| 316 | mutex_lock(&dpi.lock); |
| 317 | |
Archit Taneja | c499144 | 2012-08-08 14:28:54 +0530 | [diff] [blame] | 318 | dpi.timings = *timings; |
Archit Taneja | c499144 | 2012-08-08 14:28:54 +0530 | [diff] [blame] | 319 | |
Archit Taneja | c8a5e4e | 2012-07-05 12:52:46 +0530 | [diff] [blame] | 320 | mutex_unlock(&dpi.lock); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 321 | } |
Archit Taneja | c499144 | 2012-08-08 14:28:54 +0530 | [diff] [blame] | 322 | EXPORT_SYMBOL(omapdss_dpi_set_timings); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 323 | |
Tomi Valkeinen | 69b2048 | 2010-01-20 12:11:25 +0200 | [diff] [blame] | 324 | int dpi_check_timings(struct omap_dss_device *dssdev, |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 325 | struct omap_video_timings *timings) |
| 326 | { |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 327 | int r; |
Archit Taneja | 5d512fc | 2012-09-07 17:53:38 +0530 | [diff] [blame] | 328 | struct omap_overlay_manager *mgr = dssdev->output->manager; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 329 | int lck_div, pck_div; |
| 330 | unsigned long fck; |
| 331 | unsigned long pck; |
Archit Taneja | 7636b3b | 2011-04-12 13:52:26 +0530 | [diff] [blame] | 332 | struct dispc_clock_info dispc_cinfo; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 333 | |
Tomi Valkeinen | 8b09551 | 2012-10-24 13:27:02 +0300 | [diff] [blame] | 334 | if (mgr && !dispc_mgr_timings_ok(mgr->id, timings)) |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 335 | return -EINVAL; |
| 336 | |
| 337 | if (timings->pixel_clock == 0) |
| 338 | return -EINVAL; |
| 339 | |
Tomi Valkeinen | 8a3db40 | 2012-10-22 16:03:39 +0300 | [diff] [blame] | 340 | if (dpi.dsidev) { |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 341 | struct dsi_clock_info dsi_cinfo; |
Archit Taneja | 6d523e7 | 2012-06-21 09:33:55 +0530 | [diff] [blame] | 342 | r = dsi_pll_calc_clock_div_pck(dpi.dsidev, |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 343 | timings->pixel_clock * 1000, |
| 344 | &dsi_cinfo, &dispc_cinfo); |
| 345 | |
| 346 | if (r) |
| 347 | return r; |
| 348 | |
Archit Taneja | 1bb4783 | 2011-02-24 14:17:30 +0530 | [diff] [blame] | 349 | fck = dsi_cinfo.dsi_pll_hsdiv_dispc_clk; |
Archit Taneja | 7636b3b | 2011-04-12 13:52:26 +0530 | [diff] [blame] | 350 | } else { |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 351 | struct dss_clock_info dss_cinfo; |
Archit Taneja | 6d523e7 | 2012-06-21 09:33:55 +0530 | [diff] [blame] | 352 | r = dss_calc_clock_div(timings->pixel_clock * 1000, |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 353 | &dss_cinfo, &dispc_cinfo); |
| 354 | |
| 355 | if (r) |
| 356 | return r; |
| 357 | |
| 358 | fck = dss_cinfo.fck; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 359 | } |
Archit Taneja | 7636b3b | 2011-04-12 13:52:26 +0530 | [diff] [blame] | 360 | |
| 361 | lck_div = dispc_cinfo.lck_div; |
| 362 | pck_div = dispc_cinfo.pck_div; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 363 | |
| 364 | pck = fck / lck_div / pck_div / 1000; |
| 365 | |
| 366 | timings->pixel_clock = pck; |
| 367 | |
| 368 | return 0; |
| 369 | } |
Tomi Valkeinen | 69b2048 | 2010-01-20 12:11:25 +0200 | [diff] [blame] | 370 | EXPORT_SYMBOL(dpi_check_timings); |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 371 | |
Archit Taneja | c6b393d | 2012-07-06 15:30:52 +0530 | [diff] [blame] | 372 | void omapdss_dpi_set_data_lines(struct omap_dss_device *dssdev, int data_lines) |
| 373 | { |
| 374 | mutex_lock(&dpi.lock); |
| 375 | |
| 376 | dpi.data_lines = data_lines; |
| 377 | |
| 378 | mutex_unlock(&dpi.lock); |
| 379 | } |
| 380 | EXPORT_SYMBOL(omapdss_dpi_set_data_lines); |
| 381 | |
Tomi Valkeinen | 6061675 | 2012-10-30 12:57:43 +0200 | [diff] [blame] | 382 | static int __init dpi_verify_dsi_pll(struct platform_device *dsidev) |
| 383 | { |
| 384 | int r; |
| 385 | |
| 386 | /* do initial setup with the PLL to see if it is operational */ |
| 387 | |
| 388 | r = dsi_runtime_get(dsidev); |
| 389 | if (r) |
| 390 | return r; |
| 391 | |
| 392 | r = dsi_pll_init(dsidev, 0, 1); |
| 393 | if (r) { |
| 394 | dsi_runtime_put(dsidev); |
| 395 | return r; |
| 396 | } |
| 397 | |
| 398 | dsi_pll_uninit(dsidev, true); |
| 399 | dsi_runtime_put(dsidev); |
| 400 | |
| 401 | return 0; |
| 402 | } |
| 403 | |
Tomi Valkeinen | 9d8232a | 2012-03-01 16:58:39 +0200 | [diff] [blame] | 404 | static int __init dpi_init_display(struct omap_dss_device *dssdev) |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 405 | { |
Tomi Valkeinen | 0e8276e | 2012-10-22 16:12:58 +0300 | [diff] [blame] | 406 | struct platform_device *dsidev; |
| 407 | |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 408 | DSSDBG("init_display\n"); |
| 409 | |
Chandrabhanu Mahapatra | 195e672 | 2012-08-22 11:44:06 +0530 | [diff] [blame] | 410 | if (dss_has_feature(FEAT_DPI_USES_VDDS_DSI) && |
| 411 | dpi.vdds_dsi_reg == NULL) { |
Tomi Valkeinen | 5f42f2c | 2011-02-22 15:53:46 +0200 | [diff] [blame] | 412 | struct regulator *vdds_dsi; |
| 413 | |
| 414 | vdds_dsi = dss_get_vdds_dsi(); |
| 415 | |
| 416 | if (IS_ERR(vdds_dsi)) { |
| 417 | DSSERR("can't get VDDS_DSI regulator\n"); |
| 418 | return PTR_ERR(vdds_dsi); |
| 419 | } |
| 420 | |
| 421 | dpi.vdds_dsi_reg = vdds_dsi; |
| 422 | } |
| 423 | |
Tomi Valkeinen | 0e8276e | 2012-10-22 16:12:58 +0300 | [diff] [blame] | 424 | /* |
| 425 | * XXX We shouldn't need dssdev->channel for this. The dsi pll clock |
| 426 | * source for DPI is SoC integration detail, not something that should |
| 427 | * be configured in the dssdev |
| 428 | */ |
| 429 | dsidev = dpi_get_dsidev(dssdev->channel); |
Tomi Valkeinen | 6061675 | 2012-10-30 12:57:43 +0200 | [diff] [blame] | 430 | |
Tomi Valkeinen | 1de8e12 | 2012-11-12 16:52:11 +0200 | [diff] [blame] | 431 | if (dsidev && dpi_verify_dsi_pll(dsidev)) { |
Tomi Valkeinen | 0e8276e | 2012-10-22 16:12:58 +0300 | [diff] [blame] | 432 | dsidev = NULL; |
| 433 | DSSWARN("DSI PLL not operational\n"); |
Archit Taneja | a72b64b | 2011-05-12 17:26:26 +0530 | [diff] [blame] | 434 | } |
| 435 | |
Tomi Valkeinen | 0e8276e | 2012-10-22 16:12:58 +0300 | [diff] [blame] | 436 | if (dsidev) |
| 437 | DSSDBG("using DSI PLL for DPI clock\n"); |
| 438 | |
| 439 | dpi.dsidev = dsidev; |
| 440 | |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 441 | return 0; |
| 442 | } |
| 443 | |
Tomi Valkeinen | 1521653 | 2012-09-06 14:29:31 +0300 | [diff] [blame] | 444 | 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] | 445 | { |
Tomi Valkeinen | 35deca3 | 2012-03-01 15:45:53 +0200 | [diff] [blame] | 446 | struct omap_dss_board_info *pdata = pdev->dev.platform_data; |
Tomi Valkeinen | 2bbcce5 | 2012-10-29 12:40:46 +0200 | [diff] [blame] | 447 | const char *def_disp_name = omapdss_get_default_display_name(); |
Tomi Valkeinen | 1521653 | 2012-09-06 14:29:31 +0300 | [diff] [blame] | 448 | struct omap_dss_device *def_dssdev; |
| 449 | int i; |
| 450 | |
| 451 | def_dssdev = NULL; |
Tomi Valkeinen | 35deca3 | 2012-03-01 15:45:53 +0200 | [diff] [blame] | 452 | |
| 453 | for (i = 0; i < pdata->num_devices; ++i) { |
| 454 | struct omap_dss_device *dssdev = pdata->devices[i]; |
| 455 | |
| 456 | if (dssdev->type != OMAP_DISPLAY_TYPE_DPI) |
| 457 | continue; |
| 458 | |
Tomi Valkeinen | 1521653 | 2012-09-06 14:29:31 +0300 | [diff] [blame] | 459 | if (def_dssdev == NULL) |
| 460 | def_dssdev = dssdev; |
Tomi Valkeinen | 9d8232a | 2012-03-01 16:58:39 +0200 | [diff] [blame] | 461 | |
Tomi Valkeinen | 1521653 | 2012-09-06 14:29:31 +0300 | [diff] [blame] | 462 | if (def_disp_name != NULL && |
| 463 | strcmp(dssdev->name, def_disp_name) == 0) { |
| 464 | def_dssdev = dssdev; |
| 465 | break; |
| 466 | } |
| 467 | } |
| 468 | |
| 469 | return def_dssdev; |
| 470 | } |
| 471 | |
Tomi Valkeinen | 5274484 | 2012-09-10 13:58:29 +0300 | [diff] [blame] | 472 | static void __init dpi_probe_pdata(struct platform_device *dpidev) |
Tomi Valkeinen | 1521653 | 2012-09-06 14:29:31 +0300 | [diff] [blame] | 473 | { |
Tomi Valkeinen | 5274484 | 2012-09-10 13:58:29 +0300 | [diff] [blame] | 474 | struct omap_dss_device *plat_dssdev; |
Tomi Valkeinen | 1521653 | 2012-09-06 14:29:31 +0300 | [diff] [blame] | 475 | struct omap_dss_device *dssdev; |
| 476 | int r; |
| 477 | |
Tomi Valkeinen | 5274484 | 2012-09-10 13:58:29 +0300 | [diff] [blame] | 478 | plat_dssdev = dpi_find_dssdev(dpidev); |
Tomi Valkeinen | 1521653 | 2012-09-06 14:29:31 +0300 | [diff] [blame] | 479 | |
Tomi Valkeinen | 5274484 | 2012-09-10 13:58:29 +0300 | [diff] [blame] | 480 | if (!plat_dssdev) |
| 481 | return; |
| 482 | |
| 483 | dssdev = dss_alloc_and_init_device(&dpidev->dev); |
Tomi Valkeinen | 1521653 | 2012-09-06 14:29:31 +0300 | [diff] [blame] | 484 | if (!dssdev) |
| 485 | return; |
| 486 | |
Tomi Valkeinen | 5274484 | 2012-09-10 13:58:29 +0300 | [diff] [blame] | 487 | dss_copy_device_pdata(dssdev, plat_dssdev); |
| 488 | |
Tomi Valkeinen | 1521653 | 2012-09-06 14:29:31 +0300 | [diff] [blame] | 489 | r = dpi_init_display(dssdev); |
| 490 | if (r) { |
| 491 | DSSERR("device %s init failed: %d\n", dssdev->name, r); |
Tomi Valkeinen | 5274484 | 2012-09-10 13:58:29 +0300 | [diff] [blame] | 492 | dss_put_device(dssdev); |
Tomi Valkeinen | 1521653 | 2012-09-06 14:29:31 +0300 | [diff] [blame] | 493 | return; |
| 494 | } |
| 495 | |
Tomi Valkeinen | 486c0e1 | 2012-12-07 12:50:08 +0200 | [diff] [blame] | 496 | r = omapdss_output_set_device(&dpi.output, dssdev); |
| 497 | if (r) { |
| 498 | DSSERR("failed to connect output to new device: %s\n", |
| 499 | dssdev->name); |
| 500 | dss_put_device(dssdev); |
| 501 | return; |
| 502 | } |
| 503 | |
Tomi Valkeinen | 5274484 | 2012-09-10 13:58:29 +0300 | [diff] [blame] | 504 | r = dss_add_device(dssdev); |
Tomi Valkeinen | 1521653 | 2012-09-06 14:29:31 +0300 | [diff] [blame] | 505 | if (r) { |
| 506 | DSSERR("device %s register failed: %d\n", dssdev->name, r); |
Tomi Valkeinen | 486c0e1 | 2012-12-07 12:50:08 +0200 | [diff] [blame] | 507 | omapdss_output_unset_device(&dpi.output); |
Tomi Valkeinen | 5274484 | 2012-09-10 13:58:29 +0300 | [diff] [blame] | 508 | dss_put_device(dssdev); |
Tomi Valkeinen | 1521653 | 2012-09-06 14:29:31 +0300 | [diff] [blame] | 509 | return; |
Tomi Valkeinen | 35deca3 | 2012-03-01 15:45:53 +0200 | [diff] [blame] | 510 | } |
Tomi Valkeinen | 38f3daf | 2012-05-02 14:55:12 +0300 | [diff] [blame] | 511 | } |
| 512 | |
Archit Taneja | 81b87f5 | 2012-09-26 16:30:49 +0530 | [diff] [blame] | 513 | static void __init dpi_init_output(struct platform_device *pdev) |
| 514 | { |
| 515 | struct omap_dss_output *out = &dpi.output; |
| 516 | |
| 517 | out->pdev = pdev; |
| 518 | out->id = OMAP_DSS_OUTPUT_DPI; |
| 519 | out->type = OMAP_DISPLAY_TYPE_DPI; |
| 520 | |
| 521 | dss_register_output(out); |
| 522 | } |
| 523 | |
| 524 | static void __exit dpi_uninit_output(struct platform_device *pdev) |
| 525 | { |
| 526 | struct omap_dss_output *out = &dpi.output; |
| 527 | |
| 528 | dss_unregister_output(out); |
| 529 | } |
| 530 | |
Tomi Valkeinen | 38f3daf | 2012-05-02 14:55:12 +0300 | [diff] [blame] | 531 | static int __init omap_dpi_probe(struct platform_device *pdev) |
| 532 | { |
Archit Taneja | c8a5e4e | 2012-07-05 12:52:46 +0530 | [diff] [blame] | 533 | mutex_init(&dpi.lock); |
| 534 | |
Archit Taneja | 81b87f5 | 2012-09-26 16:30:49 +0530 | [diff] [blame] | 535 | dpi_init_output(pdev); |
| 536 | |
Tomi Valkeinen | 38f3daf | 2012-05-02 14:55:12 +0300 | [diff] [blame] | 537 | dpi_probe_pdata(pdev); |
Tomi Valkeinen | 35deca3 | 2012-03-01 15:45:53 +0200 | [diff] [blame] | 538 | |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 539 | return 0; |
| 540 | } |
| 541 | |
Tomi Valkeinen | 6e7e8f0 | 2012-02-17 17:41:13 +0200 | [diff] [blame] | 542 | static int __exit omap_dpi_remove(struct platform_device *pdev) |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 543 | { |
Tomi Valkeinen | 5274484 | 2012-09-10 13:58:29 +0300 | [diff] [blame] | 544 | dss_unregister_child_devices(&pdev->dev); |
Tomi Valkeinen | 35deca3 | 2012-03-01 15:45:53 +0200 | [diff] [blame] | 545 | |
Archit Taneja | 81b87f5 | 2012-09-26 16:30:49 +0530 | [diff] [blame] | 546 | dpi_uninit_output(pdev); |
| 547 | |
Tomi Valkeinen | a57dd4f | 2012-02-20 16:57:37 +0200 | [diff] [blame] | 548 | return 0; |
Tomi Valkeinen | 553c48c | 2009-08-07 13:15:50 +0300 | [diff] [blame] | 549 | } |
| 550 | |
Tomi Valkeinen | a57dd4f | 2012-02-20 16:57:37 +0200 | [diff] [blame] | 551 | static struct platform_driver omap_dpi_driver = { |
Tomi Valkeinen | 6e7e8f0 | 2012-02-17 17:41:13 +0200 | [diff] [blame] | 552 | .remove = __exit_p(omap_dpi_remove), |
Tomi Valkeinen | a57dd4f | 2012-02-20 16:57:37 +0200 | [diff] [blame] | 553 | .driver = { |
| 554 | .name = "omapdss_dpi", |
| 555 | .owner = THIS_MODULE, |
| 556 | }, |
| 557 | }; |
| 558 | |
Tomi Valkeinen | 6e7e8f0 | 2012-02-17 17:41:13 +0200 | [diff] [blame] | 559 | int __init dpi_init_platform_driver(void) |
Tomi Valkeinen | a57dd4f | 2012-02-20 16:57:37 +0200 | [diff] [blame] | 560 | { |
Tomi Valkeinen | 61055d4 | 2012-03-07 12:53:38 +0200 | [diff] [blame] | 561 | return platform_driver_probe(&omap_dpi_driver, omap_dpi_probe); |
Tomi Valkeinen | a57dd4f | 2012-02-20 16:57:37 +0200 | [diff] [blame] | 562 | } |
| 563 | |
Tomi Valkeinen | 6e7e8f0 | 2012-02-17 17:41:13 +0200 | [diff] [blame] | 564 | void __exit dpi_uninit_platform_driver(void) |
Tomi Valkeinen | a57dd4f | 2012-02-20 16:57:37 +0200 | [diff] [blame] | 565 | { |
| 566 | platform_driver_unregister(&omap_dpi_driver); |
| 567 | } |