[RFC 2/2] drm/msm: Add support for msm8x94
From: Stephane Viau
Date: Tue Jun 16 2015 - 18:24:45 EST
This change adds the MDP and HDMI support for msm8x94.
Note that HDMI PHY registers are not being accessed anymore from
the driver.
Signed-off-by: Stephane Viau <sviau@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/msm/hdmi/hdmi.c | 30 ++++++++-----
drivers/gpu/drm/msm/hdmi/hdmi_bridge.c | 8 +++-
drivers/gpu/drm/msm/hdmi/hdmi_connector.c | 43 +++++++++++-------
drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.c | 73 ++++++++++++++++++++++++++++++-
drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c | 8 ++--
5 files changed, 129 insertions(+), 33 deletions(-)
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c
index 8145362..4d73a69 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi.c
@@ -89,16 +89,15 @@ static struct hdmi *hdmi_init(struct platform_device *pdev)
hdmi->config = config;
/* not sure about which phy maps to which msm.. probably I miss some */
- if (config->phy_init)
+ if (config->phy_init) {
hdmi->phy = config->phy_init(hdmi);
- else
- hdmi->phy = ERR_PTR(-ENXIO);
- if (IS_ERR(hdmi->phy)) {
- ret = PTR_ERR(hdmi->phy);
- dev_err(&pdev->dev, "failed to load phy: %d\n", ret);
- hdmi->phy = NULL;
- goto fail;
+ if (IS_ERR(hdmi->phy)) {
+ ret = PTR_ERR(hdmi->phy);
+ dev_err(&pdev->dev, "failed to load phy: %d\n", ret);
+ hdmi->phy = NULL;
+ goto fail;
+ }
}
hdmi->mmio = msm_ioremap(pdev, config->mmio_name, "HDMI");
@@ -330,7 +329,19 @@ static struct hdmi_platform_config hdmi_tx_8084_config = {
.hpd_freq = hpd_clk_freq_8x74,
};
+static const char *hpd_reg_names_8x94[] = {};
+
+static struct hdmi_platform_config hdmi_tx_8x94_config = {
+ .phy_init = NULL, /* nothing to do for this HDMI PHY 20nm */
+ HDMI_CFG(pwr_reg, 8x74),
+ HDMI_CFG(hpd_reg, 8x94),
+ HDMI_CFG(pwr_clk, 8x74),
+ HDMI_CFG(hpd_clk, 8x74),
+ .hpd_freq = hpd_clk_freq_8x74,
+};
+
static const struct of_device_id dt_match[] = {
+ { .compatible = "qcom,hdmi-tx-8x94", .data = &hdmi_tx_8x94_config },
{ .compatible = "qcom,hdmi-tx-8084", .data = &hdmi_tx_8084_config },
{ .compatible = "qcom,hdmi-tx-8074", .data = &hdmi_tx_8074_config },
{ .compatible = "qcom,hdmi-tx-8960", .data = &hdmi_tx_8960_config },
@@ -347,8 +358,7 @@ static int get_gpio(struct device *dev, struct device_node *of_node, const char
snprintf(name2, sizeof(name2), "%s-gpio", name);
gpio = of_get_named_gpio(of_node, name2, 0);
if (gpio < 0) {
- dev_err(dev, "failed to get gpio: %s (%d)\n",
- name, gpio);
+ DBG("failed to get gpio: %s (%d)", name, gpio);
gpio = -1;
}
}
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
index a7a1d82..00cec41 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
@@ -100,7 +100,9 @@ static void hdmi_bridge_pre_enable(struct drm_bridge *bridge)
hdmi_audio_update(hdmi);
}
- phy->funcs->powerup(phy, hdmi->pixclock);
+ if (phy)
+ phy->funcs->powerup(phy, hdmi->pixclock);
+
hdmi_set_mode(hdmi, true);
}
@@ -120,7 +122,9 @@ static void hdmi_bridge_post_disable(struct drm_bridge *bridge)
DBG("power down");
hdmi_set_mode(hdmi, false);
- phy->funcs->powerdown(phy);
+
+ if (phy)
+ phy->funcs->powerdown(phy);
if (hdmi->power_on) {
power_off(bridge);
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_connector.c b/drivers/gpu/drm/msm/hdmi/hdmi_connector.c
index ece572d..cdc818c 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi_connector.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi_connector.c
@@ -84,21 +84,25 @@ static int gpio_config(struct hdmi *hdmi, bool on)
int ret;
if (on) {
- ret = gpio_request(config->ddc_clk_gpio, "HDMI_DDC_CLK");
- if (ret) {
- dev_err(dev, "'%s'(%d) gpio_request failed: %d\n",
- "HDMI_DDC_CLK", config->ddc_clk_gpio, ret);
- goto error1;
+ if (config->ddc_clk_gpio != -1) {
+ ret = gpio_request(config->ddc_clk_gpio, "HDMI_DDC_CLK");
+ if (ret) {
+ dev_err(dev, "'%s'(%d) gpio_request failed: %d\n",
+ "HDMI_DDC_CLK", config->ddc_clk_gpio, ret);
+ goto error1;
+ }
+ gpio_set_value_cansleep(config->ddc_clk_gpio, 1);
}
- gpio_set_value_cansleep(config->ddc_clk_gpio, 1);
- ret = gpio_request(config->ddc_data_gpio, "HDMI_DDC_DATA");
- if (ret) {
- dev_err(dev, "'%s'(%d) gpio_request failed: %d\n",
- "HDMI_DDC_DATA", config->ddc_data_gpio, ret);
- goto error2;
+ if (config->ddc_data_gpio != -1) {
+ ret = gpio_request(config->ddc_data_gpio, "HDMI_DDC_DATA");
+ if (ret) {
+ dev_err(dev, "'%s'(%d) gpio_request failed: %d\n",
+ "HDMI_DDC_DATA", config->ddc_data_gpio, ret);
+ goto error2;
+ }
+ gpio_set_value_cansleep(config->ddc_data_gpio, 1);
}
- gpio_set_value_cansleep(config->ddc_data_gpio, 1);
ret = gpio_request(config->hpd_gpio, "HDMI_HPD");
if (ret) {
@@ -143,8 +147,12 @@ static int gpio_config(struct hdmi *hdmi, bool on)
}
DBG("gpio on");
} else {
- gpio_free(config->ddc_clk_gpio);
- gpio_free(config->ddc_data_gpio);
+ if (config->ddc_clk_gpio != -1)
+ gpio_free(config->ddc_clk_gpio);
+
+ if (config->ddc_data_gpio != -1)
+ gpio_free(config->ddc_data_gpio);
+
gpio_free(config->hpd_gpio);
if (config->mux_en_gpio != -1) {
@@ -175,9 +183,11 @@ error5:
error4:
gpio_free(config->hpd_gpio);
error3:
- gpio_free(config->ddc_data_gpio);
+ if (config->ddc_data_gpio != -1)
+ gpio_free(config->ddc_data_gpio);
error2:
- gpio_free(config->ddc_clk_gpio);
+ if (config->ddc_clk_gpio != -1)
+ gpio_free(config->ddc_clk_gpio);
error1:
return ret;
}
@@ -187,7 +197,6 @@ static int hpd_enable(struct hdmi_connector *hdmi_connector)
struct hdmi *hdmi = hdmi_connector->hdmi;
const struct hdmi_platform_config *config = hdmi->config;
struct device *dev = &hdmi->pdev->dev;
- struct hdmi_phy *phy = hdmi->phy;
uint32_t hpd_ctrl;
int i, ret;
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.c
index 9ff25a3..b064c5f 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.c
@@ -203,14 +203,85 @@ const struct mdp5_cfg_hw msm8x16_config = {
.max_clk = 320000000,
};
+const struct mdp5_cfg_hw msm8x94_config = {
+ .name = "msm8x94",
+ .mdp = {
+ .count = 1,
+ .base = { 0x01000 },
+ },
+ .smp = {
+ .mmb_count = 44,
+ .mmb_size = 8192,
+ .clients = {
+ [SSPP_VIG0] = 1, [SSPP_VIG1] = 4,
+ [SSPP_VIG2] = 7, [SSPP_VIG3] = 19,
+ [SSPP_DMA0] = 10, [SSPP_DMA1] = 13,
+ [SSPP_RGB0] = 16, [SSPP_RGB1] = 17,
+ [SSPP_RGB2] = 18, [SSPP_RGB3] = 22,
+ },
+ .reserved_state[0] = GENMASK(23, 0), /* first 24 MMBs */
+ .reserved = {
+ [ 1] = 1, [ 4] = 1, [ 7] = 1, [19] = 1,
+ [16] = 5, [17] = 5, [18] = 5, [22] = 5,
+ },
+ },
+ .ctl = {
+ .count = 5,
+ .base = { 0x02000, 0x02200, 0x02400, 0x02600, 0x02800 },
+ .flush_hw_mask = 0xf0ffffff,
+ },
+ .pipe_vig = {
+ .count = 4,
+ .base = { 0x05000, 0x07000, 0x09000, 0x0b000 },
+ /* TODO: add decimation bit */
+ },
+ .pipe_rgb = {
+ .count = 4,
+ .base = { 0x15000, 0x17000, 0x19000, 0x1b000 },
+ /* TODO: add decimation bit */
+ },
+ .pipe_dma = {
+ .count = 2,
+ .base = { 0x25000, 0x27000 },
+ },
+ .lm = {
+ .count = 6,
+ .base = { 0x45000, 0x46000, 0x47000, 0x48000, 0x49000, 0x4a000 },
+ .nb_stages = 8,
+ },
+ .dspp = {
+ .count = 4,
+ .base = { 0x55000, 0x57000, 0x59000, 0x5b000 },
+
+ },
+ .ad = {
+ .count = 3,
+ .base = { 0x79000, 0x79800, 0x7a000 },
+ },
+ .pp = {
+ .count = 4,
+ .base = { 0x71000, 0x71800, 0x72000, 0x72800 },
+ },
+ .intf = {
+ .base = { 0x6b000, 0x6b800, 0x6c000, 0x6c800, 0x6d000 },
+ .connect = {
+ [0] = INTF_DISABLED,
+ [1] = INTF_DSI,
+ [2] = INTF_DSI,
+ [3] = INTF_HDMI,
+ },
+ },
+ .max_clk = 320000000,
+};
+
static const struct mdp5_cfg_handler cfg_handlers[] = {
{ .revision = 0, .config = { .hw = &msm8x74_config } },
{ .revision = 2, .config = { .hw = &msm8x74_config } },
{ .revision = 3, .config = { .hw = &apq8084_config } },
{ .revision = 6, .config = { .hw = &msm8x16_config } },
+ { .revision = 9, .config = { .hw = &msm8x94_config } },
};
-
static struct mdp5_cfg_platform *mdp5_get_config(struct platform_device *dev);
const struct mdp5_cfg_hw *mdp5_cfg_get_hw_config(struct mdp5_cfg_handler *cfg_handler)
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
index f6c5896..97226a1 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
@@ -159,7 +159,8 @@ int mdp5_disable(struct mdp5_kms *mdp5_kms)
clk_disable_unprepare(mdp5_kms->ahb_clk);
clk_disable_unprepare(mdp5_kms->axi_clk);
clk_disable_unprepare(mdp5_kms->core_clk);
- clk_disable_unprepare(mdp5_kms->lut_clk);
+ if (mdp5_kms->lut_clk)
+ clk_disable_unprepare(mdp5_kms->lut_clk);
return 0;
}
@@ -171,7 +172,8 @@ int mdp5_enable(struct mdp5_kms *mdp5_kms)
clk_prepare_enable(mdp5_kms->ahb_clk);
clk_prepare_enable(mdp5_kms->axi_clk);
clk_prepare_enable(mdp5_kms->core_clk);
- clk_prepare_enable(mdp5_kms->lut_clk);
+ if (mdp5_kms->lut_clk)
+ clk_prepare_enable(mdp5_kms->lut_clk);
return 0;
}
@@ -471,7 +473,7 @@ struct msm_kms *mdp5_kms_init(struct drm_device *dev)
goto fail;
ret = get_clk(pdev, &mdp5_kms->lut_clk, "lut_clk");
if (ret)
- goto fail;
+ DBG("failed to get (optional) lut_clk clock");
ret = get_clk(pdev, &mdp5_kms->vsync_clk, "vsync_clk");
if (ret)
goto fail;
--
Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/