msm: display: Add DSI clock control for MDP GDHS power collapse
Enable DSI clock and regulator before enabling/disabling power collapse
for MDP GDHS.
(cherry picked from commit ad3200279e62eff01fd1bb9136cc9c0d11e10380)
(cherry picked from commit 58c5992c710df379e26bb210e00c74da501db9d2)
Change-Id: I76b91260c61abf214e688c0dea6989ed2cfa3801
Signed-off-by: Ravishangar Kalyanam <rkalya@codeaurora.org>
Signed-off-by: Siddhartha Agrawal <agrawals@codeaurora.org>
Signed-off-by: Ram Kumar Chakravarthy Chebathini <rcheba@codeaurora.org>
Conflicts:
arch/arm/mach-msm/board-8064-regulator.c
Signed-off-by: Dhivya Subramanian <dthiru@codeaurora.org>
diff --git a/arch/arm/mach-msm/board-8064-regulator.c b/arch/arm/mach-msm/board-8064-regulator.c
index 88d00eb..83ff1dd 100644
--- a/arch/arm/mach-msm/board-8064-regulator.c
+++ b/arch/arm/mach-msm/board-8064-regulator.c
@@ -33,6 +33,7 @@
REGULATOR_SUPPLY("mipi_csi_vdd", "msm_csid.2"),
REGULATOR_SUPPLY("lvds_pll_vdda", "lvds.0"),
REGULATOR_SUPPLY("dsi1_pll_vdda", "mipi_dsi.1"),
+ REGULATOR_SUPPLY("dsi_pll_vdda", "mdp.0"),
};
VREG_CONSUMERS(L3) = {
REGULATOR_SUPPLY("8921_l3", NULL),
@@ -220,6 +221,7 @@
REGULATOR_SUPPLY("pll_vdd", "pil_riva"),
REGULATOR_SUPPLY("lvds_vdda", "lvds.0"),
REGULATOR_SUPPLY("dsi1_vddio", "mipi_dsi.1"),
+ REGULATOR_SUPPLY("dsi_pll_vddio", "mdp.0"),
REGULATOR_SUPPLY("hdmi_vdda", "hdmi_msm.0"),
};
VREG_CONSUMERS(USB_OTG) = {
diff --git a/arch/arm/mach-msm/board-8930-regulator-pm8038.c b/arch/arm/mach-msm/board-8930-regulator-pm8038.c
index 770abf0..0203db4 100644
--- a/arch/arm/mach-msm/board-8930-regulator-pm8038.c
+++ b/arch/arm/mach-msm/board-8930-regulator-pm8038.c
@@ -35,6 +35,7 @@
REGULATOR_SUPPLY("8038_l2", NULL),
REGULATOR_SUPPLY("iris_vdddig", "wcnss_wlan.0"),
REGULATOR_SUPPLY("dsi_vdda", "mipi_dsi.1"),
+ REGULATOR_SUPPLY("dsi_pll_vdda", "mdp.0"),
REGULATOR_SUPPLY("mipi_csi_vdd", "msm_csid.0"),
REGULATOR_SUPPLY("mipi_csi_vdd", "msm_csid.1"),
REGULATOR_SUPPLY("mipi_csi_vdd", "msm_csid.2"),
@@ -146,6 +147,7 @@
VREG_CONSUMERS(L23) = {
REGULATOR_SUPPLY("8038_l23", NULL),
REGULATOR_SUPPLY("dsi_vddio", "mipi_dsi.1"),
+ REGULATOR_SUPPLY("dsi_pll_vddio", "mdp.0"),
REGULATOR_SUPPLY("hdmi_avdd", "hdmi_msm.0"),
REGULATOR_SUPPLY("hdmi_vcc", "hdmi_msm.0"),
REGULATOR_SUPPLY("pll_vdd", "pil_riva"),
diff --git a/arch/arm/mach-msm/board-8960-regulator.c b/arch/arm/mach-msm/board-8960-regulator.c
index 44cd4c9..b731d9e 100644
--- a/arch/arm/mach-msm/board-8960-regulator.c
+++ b/arch/arm/mach-msm/board-8960-regulator.c
@@ -31,6 +31,7 @@
VREG_CONSUMERS(L2) = {
REGULATOR_SUPPLY("8921_l2", NULL),
REGULATOR_SUPPLY("dsi_vdda", "mipi_dsi.1"),
+ REGULATOR_SUPPLY("dsi_pll_vdda", "mdp.0"),
REGULATOR_SUPPLY("mipi_csi_vdd", "msm_csid.0"),
REGULATOR_SUPPLY("mipi_csi_vdd", "msm_csid.1"),
REGULATOR_SUPPLY("mipi_csi_vdd", "msm_csid.2"),
@@ -117,6 +118,7 @@
VREG_CONSUMERS(L23) = {
REGULATOR_SUPPLY("8921_l23", NULL),
REGULATOR_SUPPLY("dsi_vddio", "mipi_dsi.1"),
+ REGULATOR_SUPPLY("dsi_pll_vddio", "mdp.0"),
REGULATOR_SUPPLY("hdmi_avdd", "hdmi_msm.0"),
REGULATOR_SUPPLY("pll_vdd", "pil_riva"),
REGULATOR_SUPPLY("pll_vdd", "pil_qdsp6v4.1"),
diff --git a/drivers/video/msm/mdp.c b/drivers/video/msm/mdp.c
index 30e0ea8..566fb43 100644
--- a/drivers/video/msm/mdp.c
+++ b/drivers/video/msm/mdp.c
@@ -67,7 +67,7 @@
u64 mdp_max_bw = 2000000000;
static struct platform_device *mdp_init_pdev;
-static struct regulator *footswitch;
+static struct regulator *footswitch, *dsi_pll_vdda, *dsi_pll_vddio;
static unsigned int mdp_footswitch_on;
struct completion mdp_ppp_comp;
@@ -2615,18 +2615,40 @@
}
disable_irq(mdp_irq);
+ dsi_pll_vdda = regulator_get(&pdev->dev, "dsi_pll_vdda");
+ if (IS_ERR(dsi_pll_vdda)) {
+ dsi_pll_vdda = NULL;
+ } else {
+ if (mdp_rev == MDP_REV_42 || mdp_rev == MDP_REV_44) {
+ ret = regulator_set_voltage(dsi_pll_vdda, 1200000,
+ 1200000);
+ if (ret) {
+ pr_err("set_voltage failed for dsi_pll_vdda, ret=%d\n",
+ ret);
+ }
+ }
+ }
+
+ dsi_pll_vddio = regulator_get(&pdev->dev, "dsi_pll_vddio");
+ if (IS_ERR(dsi_pll_vddio)) {
+ dsi_pll_vddio = NULL;
+ } else {
+ if (mdp_rev == MDP_REV_42) {
+ ret = regulator_set_voltage(dsi_pll_vddio, 1800000,
+ 1800000);
+ if (ret) {
+ pr_err("set_voltage failed for dsi_pll_vddio, ret=%d\n",
+ ret);
+ }
+ }
+ }
+
footswitch = regulator_get(&pdev->dev, "vdd");
- if (IS_ERR(footswitch))
+ if (IS_ERR(footswitch)) {
footswitch = NULL;
- else {
+ } else {
regulator_enable(footswitch);
mdp_footswitch_on = 1;
-
- if (mdp_rev == MDP_REV_42 && !cont_splashScreen) {
- regulator_disable(footswitch);
- msleep(20);
- regulator_enable(footswitch);
- }
}
mdp_clk = clk_get(&pdev->dev, "core_clk");
@@ -2677,6 +2699,17 @@
MSM_FB_DEBUG("mdp_clk: mdp_clk=%d\n", (int)clk_get_rate(mdp_clk));
#endif
+
+ if (mdp_rev == MDP_REV_42 && !cont_splashScreen) {
+ mdp_pipe_ctrl(MDP_CMD_BLOCK, MDP_BLOCK_POWER_ON, FALSE);
+ /* DSI Video Timing generator disable */
+ outpdw(MDP_BASE + 0xE0000, 0x0);
+ /* Clear MDP Interrupt Enable register */
+ outpdw(MDP_BASE + 0x50, 0x0);
+ /* Set Overlay Proc 0 to reset state */
+ outpdw(MDP_BASE + 0x10004, 0x3);
+ mdp_pipe_ctrl(MDP_CMD_BLOCK, MDP_BLOCK_POWER_OFF, FALSE);
+ }
return 0;
}
@@ -3203,6 +3236,17 @@
return;
}
+ if (dsi_pll_vddio)
+ regulator_enable(dsi_pll_vddio);
+
+ if (dsi_pll_vdda)
+ regulator_enable(dsi_pll_vdda);
+
+ mipi_dsi_prepare_clocks();
+ mipi_dsi_ahb_ctrl(1);
+ mipi_dsi_phy_ctrl(1);
+ mipi_dsi_clk_enable();
+
if (on && !mdp_footswitch_on) {
pr_debug("Enable MDP FS\n");
regulator_enable(footswitch);
@@ -3213,6 +3257,17 @@
mdp_footswitch_on = 0;
}
+ mipi_dsi_clk_disable();
+ mipi_dsi_phy_ctrl(0);
+ mipi_dsi_ahb_ctrl(0);
+ mipi_dsi_unprepare_clocks();
+
+ if (dsi_pll_vdda)
+ regulator_disable(dsi_pll_vdda);
+
+ if (dsi_pll_vddio)
+ regulator_disable(dsi_pll_vddio);
+
mutex_unlock(&mdp_suspend_mutex);
}
diff --git a/drivers/video/msm/mipi_dsi.h b/drivers/video/msm/mipi_dsi.h
index 818caa8..223ec58 100644
--- a/drivers/video/msm/mipi_dsi.h
+++ b/drivers/video/msm/mipi_dsi.h
@@ -313,8 +313,6 @@
void mipi_dsi_set_tear_off(struct msm_fb_data_type *mfd);
void mipi_dsi_set_backlight(struct msm_fb_data_type *mfd, int level);
void mipi_dsi_cmd_backlight_tx(struct dsi_buf *dp);
-void mipi_dsi_clk_enable(void);
-void mipi_dsi_clk_disable(void);
void mipi_dsi_pre_kickoff_action(void);
void mipi_dsi_post_kickoff_action(void);
void mipi_dsi_pre_kickoff_add(struct dsi_kickoff_action *act);
@@ -328,16 +326,47 @@
irqreturn_t mipi_dsi_isr(int irq, void *ptr);
void mipi_set_tx_power_mode(int mode);
-void mipi_dsi_phy_ctrl(int on);
void mipi_dsi_phy_init(int panel_ndx, struct msm_panel_info const *panel_info,
int target_type);
int mipi_dsi_clk_div_config(uint8 bpp, uint8 lanes,
uint32 *expected_dsi_pclk);
int mipi_dsi_clk_init(struct platform_device *pdev);
void mipi_dsi_clk_deinit(struct device *dev);
+
+#ifdef CONFIG_FB_MSM_MIPI_DSI
+void mipi_dsi_clk_enable(void);
+void mipi_dsi_clk_disable(void);
void mipi_dsi_prepare_clocks(void);
void mipi_dsi_unprepare_clocks(void);
void mipi_dsi_ahb_ctrl(u32 enable);
+void mipi_dsi_phy_ctrl(int on);
+#else
+static inline void mipi_dsi_clk_enable(void)
+{
+ /* empty */
+}
+void mipi_dsi_clk_disable(void)
+{
+ /* empty */
+}
+void mipi_dsi_prepare_clocks(void)
+{
+ /* empty */
+}
+void mipi_dsi_unprepare_clocks(void)
+{
+ /* empty */
+}
+void mipi_dsi_ahb_ctrl(u32 enable)
+{
+ /* empty */
+}
+void mipi_dsi_phy_ctrl(int on)
+{
+ /* empty */
+}
+#endif
+
void cont_splash_clk_ctrl(int enable);
void mipi_dsi_turn_on_clks(void);
void mipi_dsi_turn_off_clks(void);