* [PATCH 1/2] drm/msm/dsi: Update source PLL selection in DSI PHY
2015-06-10 17:18 [PATCH 0/2] drm/msm/dsi: Miscellaneous patches Hai Li
@ 2015-06-10 17:18 ` Hai Li
2015-06-10 17:18 ` [PATCH 2/2] drm/msm/dsi: Rename *dual panel* to *dual DSI* Hai Li
1 sibling, 0 replies; 3+ messages in thread
From: Hai Li @ 2015-06-10 17:18 UTC (permalink / raw)
To: dri-devel; +Cc: linux-arm-msm, linux-kernel, robdclark, Hai Li
The source PLL to be used by each DSI PHY should be decided by
DSI manager based on dual DSI information, while the register
programming to select PLL is different from one type of PHY to
another. This change adds the H/W difference to PHY configuration
and updates the interface between DSI manager and PHY.
With this change, PLL selection can be supported on different
targets.
Signed-off-by: Hai Li <hali@codeaurora.org>
---
drivers/gpu/drm/msm/dsi/dsi.h | 14 +-------------
drivers/gpu/drm/msm/dsi/dsi_manager.c | 15 ++++++++++++++-
drivers/gpu/drm/msm/dsi/dsi_phy.c | 34 ++++++++++++++++++++++++++--------
3 files changed, 41 insertions(+), 22 deletions(-)
diff --git a/drivers/gpu/drm/msm/dsi/dsi.h b/drivers/gpu/drm/msm/dsi/dsi.h
index 92d697d..5e29aad 100644
--- a/drivers/gpu/drm/msm/dsi/dsi.h
+++ b/drivers/gpu/drm/msm/dsi/dsi.h
@@ -27,18 +27,6 @@
#define DSI_1 1
#define DSI_MAX 2
-#define DSI_CLOCK_MASTER DSI_0
-#define DSI_CLOCK_SLAVE DSI_1
-
-#define DSI_LEFT DSI_0
-#define DSI_RIGHT DSI_1
-
-/* According to the current drm framework sequence, take the encoder of
- * DSI_1 as master encoder
- */
-#define DSI_ENCODER_MASTER DSI_1
-#define DSI_ENCODER_SLAVE DSI_0
-
enum msm_dsi_phy_type {
MSM_DSI_PHY_28NM_HPM,
MSM_DSI_PHY_28NM_LP,
@@ -153,7 +141,7 @@ int msm_dsi_host_init(struct msm_dsi *msm_dsi);
struct msm_dsi_phy;
void msm_dsi_phy_driver_register(void);
void msm_dsi_phy_driver_unregister(void);
-int msm_dsi_phy_enable(struct msm_dsi_phy *phy, bool is_dual_panel,
+int msm_dsi_phy_enable(struct msm_dsi_phy *phy, int src_pll_id,
const unsigned long bit_rate, const unsigned long esc_rate);
int msm_dsi_phy_disable(struct msm_dsi_phy *phy);
void msm_dsi_phy_get_clk_pre_post(struct msm_dsi_phy *phy,
diff --git a/drivers/gpu/drm/msm/dsi/dsi_manager.c b/drivers/gpu/drm/msm/dsi/dsi_manager.c
index 87ac661..cfa632f 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_manager.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_manager.c
@@ -14,6 +14,18 @@
#include "msm_kms.h"
#include "dsi.h"
+#define DSI_CLOCK_MASTER DSI_0
+#define DSI_CLOCK_SLAVE DSI_1
+
+#define DSI_LEFT DSI_0
+#define DSI_RIGHT DSI_1
+
+/* According to the current drm framework sequence, take the encoder of
+ * DSI_1 as master encoder
+ */
+#define DSI_ENCODER_MASTER DSI_1
+#define DSI_ENCODER_SLAVE DSI_0
+
struct msm_dsi_manager {
struct msm_dsi *dsi[DSI_MAX];
@@ -598,9 +610,10 @@ int msm_dsi_manager_phy_enable(int id,
{
struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
struct msm_dsi_phy *phy = msm_dsi->phy;
+ int src_pll_id = IS_DUAL_PANEL() ? DSI_CLOCK_MASTER : id;
int ret;
- ret = msm_dsi_phy_enable(phy, IS_DUAL_PANEL(), bit_rate, esc_rate);
+ ret = msm_dsi_phy_enable(phy, src_pll_id, bit_rate, esc_rate);
if (ret)
return ret;
diff --git a/drivers/gpu/drm/msm/dsi/dsi_phy.c b/drivers/gpu/drm/msm/dsi/dsi_phy.c
index 2d3b33c..52b463e 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_phy.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_phy.c
@@ -21,7 +21,7 @@
#define dsi_phy_write(offset, data) msm_writel((data), (offset))
struct dsi_phy_ops {
- int (*enable)(struct msm_dsi_phy *phy, bool is_dual_panel,
+ int (*enable)(struct msm_dsi_phy *phy, int src_pll_id,
const unsigned long bit_rate, const unsigned long esc_rate);
int (*disable)(struct msm_dsi_phy *phy);
};
@@ -30,6 +30,12 @@ struct dsi_phy_cfg {
enum msm_dsi_phy_type type;
struct dsi_reg_config reg_cfg;
struct dsi_phy_ops ops;
+
+ /* Each cell {phy_id, pll_id} of the truth table indicates
+ * if the source PLL is on the right side of the PHY.
+ * Fill default H/W values in illegal cells, eg. cell {0, 1}.
+ */
+ bool src_pll_truthtable[DSI_MAX][DSI_MAX];
};
struct dsi_dphy_timing {
@@ -149,6 +155,19 @@ fail:
return ret;
}
+static void dsi_phy_set_src_pll(struct msm_dsi_phy *phy, int pll_id, u32 reg)
+{
+ int phy_id = phy->id;
+
+ if ((phy_id >= DSI_MAX) || (pll_id >= DSI_MAX))
+ return;
+
+ if (phy->cfg->src_pll_truthtable[phy_id][pll_id])
+ dsi_phy_write(phy->base + reg, 0x01);
+ else
+ dsi_phy_write(phy->base + reg, 0x00);
+}
+
#define S_DIV_ROUND_UP(n, d) \
(((n) >= 0) ? (((n) + (d) - 1) / (d)) : (((n) - (d) + 1) / (d)))
@@ -295,7 +314,7 @@ static void dsi_28nm_phy_regulator_ctrl(struct msm_dsi_phy *phy, bool enable)
dsi_phy_write(base + REG_DSI_28nm_PHY_REGULATOR_CTRL_4, 0x20);
}
-static int dsi_28nm_phy_enable(struct msm_dsi_phy *phy, bool is_dual_panel,
+static int dsi_28nm_phy_enable(struct msm_dsi_phy *phy, int src_pll_id,
const unsigned long bit_rate, const unsigned long esc_rate)
{
struct dsi_dphy_timing *timing = &phy->timing;
@@ -368,10 +387,7 @@ static int dsi_28nm_phy_enable(struct msm_dsi_phy *phy, bool is_dual_panel,
dsi_phy_write(base + REG_DSI_28nm_PHY_CTRL_0, 0x5f);
- if (is_dual_panel && (phy->id != DSI_CLOCK_MASTER))
- dsi_phy_write(base + REG_DSI_28nm_PHY_GLBL_TEST_CTRL, 0x00);
- else
- dsi_phy_write(base + REG_DSI_28nm_PHY_GLBL_TEST_CTRL, 0x01);
+ dsi_phy_set_src_pll(phy, src_pll_id, REG_DSI_28nm_PHY_GLBL_TEST_CTRL);
return 0;
}
@@ -414,6 +430,7 @@ static void dsi_phy_disable_resource(struct msm_dsi_phy *phy)
static const struct dsi_phy_cfg dsi_phy_cfgs[MSM_DSI_PHY_MAX] = {
[MSM_DSI_PHY_28NM_HPM] = {
.type = MSM_DSI_PHY_28NM_HPM,
+ .src_pll_truthtable = { {true, true}, {false, true} },
.reg_cfg = {
.num = 1,
.regs = {
@@ -427,6 +444,7 @@ static const struct dsi_phy_cfg dsi_phy_cfgs[MSM_DSI_PHY_MAX] = {
},
[MSM_DSI_PHY_28NM_LP] = {
.type = MSM_DSI_PHY_28NM_LP,
+ .src_pll_truthtable = { {true, true}, {true, true} },
.reg_cfg = {
.num = 1,
.regs = {
@@ -557,7 +575,7 @@ void __exit msm_dsi_phy_driver_unregister(void)
platform_driver_unregister(&dsi_phy_platform_driver);
}
-int msm_dsi_phy_enable(struct msm_dsi_phy *phy, bool is_dual_panel,
+int msm_dsi_phy_enable(struct msm_dsi_phy *phy, int src_pll_id,
const unsigned long bit_rate, const unsigned long esc_rate)
{
int ret;
@@ -572,7 +590,7 @@ int msm_dsi_phy_enable(struct msm_dsi_phy *phy, bool is_dual_panel,
return ret;
}
- return phy->cfg->ops.enable(phy, is_dual_panel, bit_rate, esc_rate);
+ return phy->cfg->ops.enable(phy, src_pll_id, bit_rate, esc_rate);
}
int msm_dsi_phy_disable(struct msm_dsi_phy *phy)
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation
^ permalink raw reply related [flat|nested] 3+ messages in thread* [PATCH 2/2] drm/msm/dsi: Rename *dual panel* to *dual DSI*
2015-06-10 17:18 [PATCH 0/2] drm/msm/dsi: Miscellaneous patches Hai Li
2015-06-10 17:18 ` [PATCH 1/2] drm/msm/dsi: Update source PLL selection in DSI PHY Hai Li
@ 2015-06-10 17:18 ` Hai Li
1 sibling, 0 replies; 3+ messages in thread
From: Hai Li @ 2015-06-10 17:18 UTC (permalink / raw)
To: dri-devel; +Cc: linux-arm-msm, linux-kernel, robdclark, Hai Li
The current term of *dual panel* in DSI driver code causes confusion.
It is supposed to indicate the panel using two DSI links. Rename it
to *dual DSI*.
Signed-off-by: Hai Li <hali@codeaurora.org>
---
Documentation/devicetree/bindings/drm/msm/dsi.txt | 12 ++--
drivers/gpu/drm/msm/dsi/dsi_manager.c | 84 +++++++++++------------
2 files changed, 48 insertions(+), 48 deletions(-)
diff --git a/Documentation/devicetree/bindings/drm/msm/dsi.txt b/Documentation/devicetree/bindings/drm/msm/dsi.txt
index cd8fe6c..6ccd860 100644
--- a/Documentation/devicetree/bindings/drm/msm/dsi.txt
+++ b/Documentation/devicetree/bindings/drm/msm/dsi.txt
@@ -30,11 +30,11 @@ Optional properties:
- panel@0: Node of panel connected to this DSI controller.
See files in Documentation/devicetree/bindings/panel/ for each supported
panel.
-- qcom,dual-panel-mode: Boolean value indicating if the DSI controller is
+- qcom,dual-dsi-mode: Boolean value indicating if the DSI controller is
driving a panel which needs 2 DSI links.
-- qcom,master-panel: Boolean value indicating if the DSI controller is driving
+- qcom,master-dsi: Boolean value indicating if the DSI controller is driving
the master link of the 2-DSI panel.
-- qcom,sync-dual-panel: Boolean value indicating if the DSI controller is
+- qcom,sync-dual-dsi: Boolean value indicating if the DSI controller is
driving a 2-DSI panel whose 2 links need receive command simultaneously.
- interrupt-parent: phandle to the MDP block if the interrupt signal is routed
through MDP block
@@ -90,9 +90,9 @@ Example:
qcom,dsi-phy = <&mdss_dsi_phy0>;
- qcom,dual-panel-mode;
- qcom,master-panel;
- qcom,sync-dual-panel;
+ qcom,dual-dsi-mode;
+ qcom,master-dsi;
+ qcom,sync-dual-dsi;
panel: panel@0 {
compatible = "sharp,lq101r1sx01";
diff --git a/drivers/gpu/drm/msm/dsi/dsi_manager.c b/drivers/gpu/drm/msm/dsi/dsi_manager.c
index cfa632f..bd247b7 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_manager.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_manager.c
@@ -29,16 +29,16 @@
struct msm_dsi_manager {
struct msm_dsi *dsi[DSI_MAX];
- bool is_dual_panel;
+ bool is_dual_dsi;
bool is_sync_needed;
- int master_panel_id;
+ int master_dsi_link_id;
};
static struct msm_dsi_manager msm_dsim_glb;
-#define IS_DUAL_PANEL() (msm_dsim_glb.is_dual_panel)
+#define IS_DUAL_DSI() (msm_dsim_glb.is_dual_dsi)
#define IS_SYNC_NEEDED() (msm_dsim_glb.is_sync_needed)
-#define IS_MASTER_PANEL(id) (msm_dsim_glb.master_panel_id == id)
+#define IS_MASTER_DSI_LINK(id) (msm_dsim_glb.master_dsi_link_id == id)
static inline struct msm_dsi *dsi_mgr_get_dsi(int id)
{
@@ -50,23 +50,23 @@ static inline struct msm_dsi *dsi_mgr_get_other_dsi(int id)
return msm_dsim_glb.dsi[(id + 1) % DSI_MAX];
}
-static int dsi_mgr_parse_dual_panel(struct device_node *np, int id)
+static int dsi_mgr_parse_dual_dsi(struct device_node *np, int id)
{
struct msm_dsi_manager *msm_dsim = &msm_dsim_glb;
- /* We assume 2 dsi nodes have the same information of dual-panel and
+ /* We assume 2 dsi nodes have the same information of dual-dsi and
* sync-mode, and only one node specifies master in case of dual mode.
*/
- if (!msm_dsim->is_dual_panel)
- msm_dsim->is_dual_panel = of_property_read_bool(
- np, "qcom,dual-panel-mode");
+ if (!msm_dsim->is_dual_dsi)
+ msm_dsim->is_dual_dsi = of_property_read_bool(
+ np, "qcom,dual-dsi-mode");
- if (msm_dsim->is_dual_panel) {
- if (of_property_read_bool(np, "qcom,master-panel"))
- msm_dsim->master_panel_id = id;
+ if (msm_dsim->is_dual_dsi) {
+ if (of_property_read_bool(np, "qcom,master-dsi"))
+ msm_dsim->master_dsi_link_id = id;
if (!msm_dsim->is_sync_needed)
msm_dsim->is_sync_needed = of_property_read_bool(
- np, "qcom,sync-dual-panel");
+ np, "qcom,sync-dual-dsi");
}
return 0;
@@ -80,7 +80,7 @@ static int dsi_mgr_host_register(int id)
struct msm_dsi_pll *src_pll;
int ret;
- if (!IS_DUAL_PANEL()) {
+ if (!IS_DUAL_DSI()) {
ret = msm_dsi_host_register(msm_dsi->host, true);
if (ret)
return ret;
@@ -90,9 +90,9 @@ static int dsi_mgr_host_register(int id)
} else if (!other_dsi) {
ret = 0;
} else {
- struct msm_dsi *mdsi = IS_MASTER_PANEL(id) ?
+ struct msm_dsi *mdsi = IS_MASTER_DSI_LINK(id) ?
msm_dsi : other_dsi;
- struct msm_dsi *sdsi = IS_MASTER_PANEL(id) ?
+ struct msm_dsi *sdsi = IS_MASTER_DSI_LINK(id) ?
other_dsi : msm_dsi;
/* Register slave host first, so that slave DSI device
* has a chance to probe, and do not block the master
@@ -159,23 +159,23 @@ static enum drm_connector_status dsi_mgr_connector_detect(
&msm_dsi->panel_flags);
/* There is only 1 panel in the global panel list
- * for dual panel mode. Therefore slave dsi should get
+ * for dual DSI mode. Therefore slave dsi should get
* the drm_panel instance from master dsi, and
* keep using the panel flags got from the current DSI link.
*/
- if (!msm_dsi->panel && IS_DUAL_PANEL() &&
- !IS_MASTER_PANEL(id) && other_dsi)
+ if (!msm_dsi->panel && IS_DUAL_DSI() &&
+ !IS_MASTER_DSI_LINK(id) && other_dsi)
msm_dsi->panel = msm_dsi_host_get_panel(
other_dsi->host, NULL);
- if (msm_dsi->panel && IS_DUAL_PANEL())
+ if (msm_dsi->panel && IS_DUAL_DSI())
drm_object_attach_property(&connector->base,
connector->dev->mode_config.tile_property, 0);
- /* Set split display info to kms once dual panel is connected
- * to both hosts
+ /* Set split display info to kms once dual DSI panel is
+ * connected to both hosts.
*/
- if (msm_dsi->panel && IS_DUAL_PANEL() &&
+ if (msm_dsi->panel && IS_DUAL_DSI() &&
other_dsi && other_dsi->panel) {
bool cmd_mode = !(msm_dsi->panel_flags &
MIPI_DSI_MODE_VIDEO);
@@ -188,7 +188,7 @@ static enum drm_connector_status dsi_mgr_connector_detect(
kms->funcs->set_split_display(kms, encoder,
slave_enc, cmd_mode);
else
- pr_err("mdp does not support dual panel\n");
+ pr_err("mdp does not support dual DSI\n");
}
}
@@ -285,7 +285,7 @@ static int dsi_mgr_connector_get_modes(struct drm_connector *connector)
if (!num)
return 0;
- if (IS_DUAL_PANEL()) {
+ if (IS_DUAL_DSI()) {
/* report half resolution to user */
dsi_dual_connector_fix_modes(connector);
ret = dsi_dual_connector_tile_init(connector, id);
@@ -340,11 +340,11 @@ static void dsi_mgr_bridge_pre_enable(struct drm_bridge *bridge)
struct msm_dsi *msm_dsi1 = dsi_mgr_get_dsi(DSI_1);
struct mipi_dsi_host *host = msm_dsi->host;
struct drm_panel *panel = msm_dsi->panel;
- bool is_dual_panel = IS_DUAL_PANEL();
+ bool is_dual_dsi = IS_DUAL_DSI();
int ret;
DBG("id=%d", id);
- if (!panel || (is_dual_panel && (DSI_1 == id)))
+ if (!panel || (is_dual_dsi && (DSI_1 == id)))
return;
ret = msm_dsi_host_power_on(host);
@@ -353,7 +353,7 @@ static void dsi_mgr_bridge_pre_enable(struct drm_bridge *bridge)
goto host_on_fail;
}
- if (is_dual_panel && msm_dsi1) {
+ if (is_dual_dsi && msm_dsi1) {
ret = msm_dsi_host_power_on(msm_dsi1->host);
if (ret) {
pr_err("%s: power on host1 failed, %d\n",
@@ -377,7 +377,7 @@ static void dsi_mgr_bridge_pre_enable(struct drm_bridge *bridge)
goto host_en_fail;
}
- if (is_dual_panel && msm_dsi1) {
+ if (is_dual_dsi && msm_dsi1) {
ret = msm_dsi_host_enable(msm_dsi1->host);
if (ret) {
pr_err("%s: enable host1 failed, %d\n", __func__, ret);
@@ -394,14 +394,14 @@ static void dsi_mgr_bridge_pre_enable(struct drm_bridge *bridge)
return;
panel_en_fail:
- if (is_dual_panel && msm_dsi1)
+ if (is_dual_dsi && msm_dsi1)
msm_dsi_host_disable(msm_dsi1->host);
host1_en_fail:
msm_dsi_host_disable(host);
host_en_fail:
drm_panel_unprepare(panel);
panel_prep_fail:
- if (is_dual_panel && msm_dsi1)
+ if (is_dual_dsi && msm_dsi1)
msm_dsi_host_power_off(msm_dsi1->host);
host1_on_fail:
msm_dsi_host_power_off(host);
@@ -426,12 +426,12 @@ static void dsi_mgr_bridge_post_disable(struct drm_bridge *bridge)
struct msm_dsi *msm_dsi1 = dsi_mgr_get_dsi(DSI_1);
struct mipi_dsi_host *host = msm_dsi->host;
struct drm_panel *panel = msm_dsi->panel;
- bool is_dual_panel = IS_DUAL_PANEL();
+ bool is_dual_dsi = IS_DUAL_DSI();
int ret;
DBG("id=%d", id);
- if (!panel || (is_dual_panel && (DSI_1 == id)))
+ if (!panel || (is_dual_dsi && (DSI_1 == id)))
return;
ret = drm_panel_disable(panel);
@@ -442,7 +442,7 @@ static void dsi_mgr_bridge_post_disable(struct drm_bridge *bridge)
if (ret)
pr_err("%s: host %d disable failed, %d\n", __func__, id, ret);
- if (is_dual_panel && msm_dsi1) {
+ if (is_dual_dsi && msm_dsi1) {
ret = msm_dsi_host_disable(msm_dsi1->host);
if (ret)
pr_err("%s: host1 disable failed, %d\n", __func__, ret);
@@ -456,7 +456,7 @@ static void dsi_mgr_bridge_post_disable(struct drm_bridge *bridge)
if (ret)
pr_err("%s: host %d power off failed,%d\n", __func__, id, ret);
- if (is_dual_panel && msm_dsi1) {
+ if (is_dual_dsi && msm_dsi1) {
ret = msm_dsi_host_power_off(msm_dsi1->host);
if (ret)
pr_err("%s: host1 power off failed, %d\n",
@@ -472,7 +472,7 @@ static void dsi_mgr_bridge_mode_set(struct drm_bridge *bridge,
struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
struct msm_dsi *other_dsi = dsi_mgr_get_other_dsi(id);
struct mipi_dsi_host *host = msm_dsi->host;
- bool is_dual_panel = IS_DUAL_PANEL();
+ bool is_dual_dsi = IS_DUAL_DSI();
DBG("set mode: %d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x",
mode->base.id, mode->name,
@@ -483,11 +483,11 @@ static void dsi_mgr_bridge_mode_set(struct drm_bridge *bridge,
mode->vsync_end, mode->vtotal,
mode->type, mode->flags);
- if (is_dual_panel && (DSI_1 == id))
+ if (is_dual_dsi && (DSI_1 == id))
return;
msm_dsi_host_set_display_mode(host, adjusted_mode);
- if (is_dual_panel && other_dsi)
+ if (is_dual_dsi && other_dsi)
msm_dsi_host_set_display_mode(other_dsi->host, adjusted_mode);
}
@@ -610,7 +610,7 @@ int msm_dsi_manager_phy_enable(int id,
{
struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
struct msm_dsi_phy *phy = msm_dsi->phy;
- int src_pll_id = IS_DUAL_PANEL() ? DSI_CLOCK_MASTER : id;
+ int src_pll_id = IS_DUAL_DSI() ? DSI_CLOCK_MASTER : id;
int ret;
ret = msm_dsi_phy_enable(phy, src_pll_id, bit_rate, esc_rate);
@@ -635,7 +635,7 @@ void msm_dsi_manager_phy_disable(int id)
* first controller only when the second controller is disabled.
*/
msm_dsi->phy_enabled = false;
- if (IS_DUAL_PANEL() && mdsi && sdsi) {
+ if (IS_DUAL_DSI() && mdsi && sdsi) {
if (!mdsi->phy_enabled && !sdsi->phy_enabled) {
msm_dsi_phy_disable(sdsi->phy);
msm_dsi_phy_disable(mdsi->phy);
@@ -726,9 +726,9 @@ int msm_dsi_manager_register(struct msm_dsi *msm_dsi)
msm_dsim->dsi[id] = msm_dsi;
- ret = dsi_mgr_parse_dual_panel(msm_dsi->pdev->dev.of_node, id);
+ ret = dsi_mgr_parse_dual_dsi(msm_dsi->pdev->dev.of_node, id);
if (ret) {
- pr_err("%s: failed to parse dual panel info\n", __func__);
+ pr_err("%s: failed to parse dual DSI info\n", __func__);
goto fail;
}
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation
^ permalink raw reply related [flat|nested] 3+ messages in thread