platform: apq8084: Support display clocks for APQ8084
Add dsi clock, mdp clock, bus clock and gdsc clock
enable/disable API for APQ8084 target. It also updates
the APQ8084 display IO mapping.
Change-Id: Ifa746110fb1dcfb8dbad958a8370a54be2293f91
diff --git a/platform/apq8084/acpuclock.c b/platform/apq8084/acpuclock.c
index b785aa1..bfae903 100644
--- a/platform/apq8084/acpuclock.c
+++ b/platform/apq8084/acpuclock.c
@@ -239,3 +239,183 @@
ASSERT(0);
}
}
+
+void mdp_gdsc_ctrl(uint8_t enable)
+{
+ uint32_t reg = 0;
+ reg = readl(MDP_GDSCR);
+ if (enable) {
+ if (!(reg & GDSC_POWER_ON_BIT)) {
+ reg &= ~(BIT(0) | GDSC_EN_FEW_WAIT_MASK);
+ reg |= GDSC_EN_FEW_WAIT_256_MASK;
+ writel(reg, MDP_GDSCR);
+ while(!(readl(MDP_GDSCR) & (GDSC_POWER_ON_BIT)));
+ } else {
+ dprintf(INFO, "MDP GDSC already enabled\n");
+ }
+ } else {
+ reg |= BIT(0);
+ writel(reg, MDP_GDSCR);
+ while(readl(MDP_GDSCR) & (GDSC_POWER_ON_BIT));
+ }
+}
+
+/* Configure MDP clock */
+void mdp_clock_enable(void)
+{
+ int ret;
+
+ /* Set MDP clock to 240MHz */
+ ret = clk_get_set_enable("mdp_ahb_clk", 0, 1);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set mdp_ahb_clk ret = %d\n", ret);
+ ASSERT(0);
+ }
+
+ ret = clk_get_set_enable("mdss_mdp_clk_src", 240000000, 1);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set mdp_clk_src ret = %d\n", ret);
+ ASSERT(0);
+ }
+
+ ret = clk_get_set_enable("mdss_vsync_clk", 0, 1);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set mdss vsync clk ret = %d\n", ret);
+ ASSERT(0);
+ }
+
+ ret = clk_get_set_enable("mdss_mdp_clk", 0, 1);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set mdp_clk ret = %d\n", ret);
+ ASSERT(0);
+ }
+
+ ret = clk_get_set_enable("mdss_mdp_lut_clk", 0, 1);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set lut_mdp clk ret = %d\n", ret);
+ ASSERT(0);
+ }
+}
+
+void mdp_clock_disable()
+{
+ clk_disable(clk_get("mdss_vsync_clk"));
+ clk_disable(clk_get("mdss_mdp_clk"));
+ clk_disable(clk_get("mdss_mdp_lut_clk"));
+ clk_disable(clk_get("mdss_mdp_clk_src"));
+ clk_disable(clk_get("mdp_ahb_clk"));
+
+}
+
+void mmss_bus_clock_enable(void)
+{
+ int ret;
+ /* Configure MMSSNOC AXI clock */
+ ret = clk_get_set_enable("mmss_mmssnoc_axi_clk", 100000000, 1);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set mmssnoc_axi_clk ret = %d\n", ret);
+ ASSERT(0);
+ }
+
+ /* Configure S0 AXI clock */
+ ret = clk_get_set_enable("mmss_s0_axi_clk", 100000000, 1);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set mmss_s0_axi_clk ret = %d\n", ret);
+ ASSERT(0);
+ }
+
+ /* Configure AXI clock */
+ ret = clk_get_set_enable("mdss_axi_clk", 100000000, 1);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set mdss_axi_clk ret = %d\n", ret);
+ ASSERT(0);
+ }
+}
+
+void mmss_bus_clock_disable(void)
+{
+ /* Disable MDSS AXI clock */
+ clk_disable(clk_get("mdss_axi_clk"));
+
+ /* Disable MMSSNOC S0AXI clock */
+ clk_disable(clk_get("mmss_s0_axi_clk"));
+
+ /* Disable MMSSNOC AXI clock */
+ clk_disable(clk_get("mmss_mmssnoc_axi_clk"));
+}
+
+void mmss_dsi_clock_enable(uint32_t dsi_pixel0_cfg_rcgr, uint32_t dual_dsi,
+ uint8_t pclk0_m, uint8_t pclk0_n, uint8_t pclk0_d)
+{
+ int ret;
+
+ /* Configure Byte clock -autopll- This will not change because
+ byte clock does not need any divider*/
+ writel(0x100, DSI_BYTE0_CFG_RCGR);
+ writel(0x1, DSI_BYTE0_CMD_RCGR);
+ writel(0x1, DSI_BYTE0_CBCR);
+
+ /* Configure Pixel clock */
+ writel(dsi_pixel0_cfg_rcgr, DSI_PIXEL0_CFG_RCGR);
+ writel(0x1, DSI_PIXEL0_CMD_RCGR);
+ writel(0x1, DSI_PIXEL0_CBCR);
+
+ writel(pclk0_m, DSI_PIXEL0_M);
+ writel(pclk0_n, DSI_PIXEL0_N);
+ writel(pclk0_d, DSI_PIXEL0_D);
+
+ /* Configure ESC clock */
+ ret = clk_get_set_enable("mdss_esc0_clk", 0, 1);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set esc0_clk ret = %d\n", ret);
+ ASSERT(0);
+ }
+
+ if (dual_dsi) {
+ /* Configure Byte 1 clock */
+ writel(0x100, DSI_BYTE1_CFG_RCGR);
+ writel(0x1, DSI_BYTE1_CMD_RCGR);
+ writel(0x1, DSI_BYTE1_CBCR);
+
+ /* Configure Pixel clock */
+ writel(dsi_pixel0_cfg_rcgr, DSI_PIXEL1_CFG_RCGR);
+ writel(0x1, DSI_PIXEL1_CMD_RCGR);
+ writel(0x1, DSI_PIXEL1_CBCR);
+
+ writel(pclk0_m, DSI_PIXEL0_M);
+ writel(pclk0_n, DSI_PIXEL0_N);
+ writel(pclk0_d, DSI_PIXEL0_D);
+
+ /* Configure ESC clock */
+ ret = clk_get_set_enable("mdss_esc1_clk", 0, 1);
+ if(ret)
+ {
+ dprintf(CRITICAL, "failed to set esc1_clk ret = %d\n", ret);
+ ASSERT(0);
+ }
+ }
+}
+
+void mmss_dsi_clock_disable(uint32_t dual_dsi)
+{
+ /* Disable ESC clock */
+ clk_disable(clk_get("mdss_esc0_clk"));
+ writel(0x0, DSI_BYTE0_CBCR);
+ writel(0x0, DSI_PIXEL0_CBCR);
+
+ if (dual_dsi) {
+ /* Disable ESC clock */
+ clk_disable(clk_get("mdss_esc1_clk"));
+ writel(0x0, DSI_BYTE1_CBCR);
+ writel(0x0, DSI_PIXEL1_CBCR);
+ }
+}