From 3cfc183052c3dbf8eae57b6c1685dab00ed3db4a Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@denx.de>
Date: Sat, 16 Oct 2021 23:04:46 +0200
Subject: drm: mxsfb: Fix NULL pointer dereference crash on unload
The mxsfb->crtc.funcs may already be NULL when unloading the driver,
in which case calling mxsfb_irq_disable() via drm_irq_uninstall() from
mxsfb_unload() leads to NULL pointer dereference.
Since all we care about is masking the IRQ and mxsfb->base is still
valid, just use that to clear and mask the IRQ.
Fixes: ae1ed00932819 ("drm: mxsfb: Stop using DRM simple display pipeline helper")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Daniel Abrecht <public@danielabrecht.ch>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Stefan Agner <stefan@agner.ch>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211016210446.171616-1-marex@denx.de
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
---
drivers/gpu/drm/mxsfb/mxsfb_drv.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
(limited to 'drivers/gpu')
diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
index ec0432fe1bdf..86d78634a979 100644
--- a/drivers/gpu/drm/mxsfb/mxsfb_drv.c
+++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
@@ -173,7 +173,11 @@ static void mxsfb_irq_disable(struct drm_device *drm)
struct mxsfb_drm_private *mxsfb = drm->dev_private;
mxsfb_enable_axi_clk(mxsfb);
- mxsfb->crtc.funcs->disable_vblank(&mxsfb->crtc);
+
+ /* Disable and clear VBLANK IRQ */
+ writel(CTRL1_CUR_FRAME_DONE_IRQ_EN, mxsfb->base + LCDC_CTRL1 + REG_CLR);
+ writel(CTRL1_CUR_FRAME_DONE_IRQ, mxsfb->base + LCDC_CTRL1 + REG_CLR);
+
mxsfb_disable_axi_clk(mxsfb);
}
--
cgit v1.2.3-70-g09d2
From 772970620a839141835eaf2bc507d957b10adcca Mon Sep 17 00:00:00 2001
From: Dan Johansen <strit@manjaro.org>
Date: Wed, 18 Aug 2021 23:48:18 +0200
Subject: drm/panel: ilitek-ili9881c: Fix sync for Feixin K101-IM2BYL02 panel
This adjusts sync values according to the datasheet
Fixes: 1c243751c095 ("drm/panel: ilitek-ili9881c: add support for Feixin K101-IM2BYL02 panel")
Co-developed-by: Marius Gripsgard <marius@ubports.com>
Signed-off-by: Dan Johansen <strit@manjaro.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210818214818.298089-1-strit@manjaro.org
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
---
drivers/gpu/drm/panel/panel-ilitek-ili9881c.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
(limited to 'drivers/gpu')
diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
index 0145129d7c66..534dd7414d42 100644
--- a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
+++ b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
@@ -590,14 +590,14 @@ static const struct drm_display_mode k101_im2byl02_default_mode = {
.clock = 69700,
.hdisplay = 800,
- .hsync_start = 800 + 6,
- .hsync_end = 800 + 6 + 15,
- .htotal = 800 + 6 + 15 + 16,
+ .hsync_start = 800 + 52,
+ .hsync_end = 800 + 52 + 8,
+ .htotal = 800 + 52 + 8 + 48,
.vdisplay = 1280,
- .vsync_start = 1280 + 8,
- .vsync_end = 1280 + 8 + 48,
- .vtotal = 1280 + 8 + 48 + 52,
+ .vsync_start = 1280 + 16,
+ .vsync_end = 1280 + 16 + 6,
+ .vtotal = 1280 + 16 + 6 + 15,
.width_mm = 135,
.height_mm = 217,
--
cgit v1.2.3-70-g09d2
From 3e4c31e8f70251732529a10934355084c7fab0ac Mon Sep 17 00:00:00 2001
From: Anitha Chrisanthus <anitha.chrisanthus@intel.com>
Date: Tue, 15 Dec 2020 11:13:09 -0800
Subject: drm/kmb: Work around for higher system clock
Use a different value for system clock offset in the
ppl/llp ratio calculations for clocks higher than 500 Mhz.
Fixes: 98521f4d4b4c ("drm/kmb: Mipi DSI part of the display driver")
Signed-off-by: Anitha Chrisanthus <anitha.chrisanthus@intel.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211013233632.471892-1-anitha.chrisanthus@intel.com
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
---
drivers/gpu/drm/kmb/kmb_dsi.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
(limited to 'drivers/gpu')
diff --git a/drivers/gpu/drm/kmb/kmb_dsi.c b/drivers/gpu/drm/kmb/kmb_dsi.c
index 1793cd31b117..86e8e7943e89 100644
--- a/drivers/gpu/drm/kmb/kmb_dsi.c
+++ b/drivers/gpu/drm/kmb/kmb_dsi.c
@@ -482,6 +482,10 @@ static u32 mipi_tx_fg_section_cfg(struct kmb_dsi *kmb_dsi,
return 0;
}
+#define CLK_DIFF_LOW 50
+#define CLK_DIFF_HI 60
+#define SYSCLK_500 500
+
static void mipi_tx_fg_cfg_regs(struct kmb_dsi *kmb_dsi, u8 frame_gen,
struct mipi_tx_frame_timing_cfg *fg_cfg)
{
@@ -492,7 +496,12 @@ static void mipi_tx_fg_cfg_regs(struct kmb_dsi *kmb_dsi, u8 frame_gen,
/* 500 Mhz system clock minus 50 to account for the difference in
* MIPI clock speed in RTL tests
*/
- sysclk = kmb_dsi->sys_clk_mhz - 50;
+ if (kmb_dsi->sys_clk_mhz == SYSCLK_500) {
+ sysclk = kmb_dsi->sys_clk_mhz - CLK_DIFF_LOW;
+ } else {
+ /* 700 Mhz clk*/
+ sysclk = kmb_dsi->sys_clk_mhz - CLK_DIFF_HI;
+ }
/* PPL-Pixel Packing Layer, LLP-Low Level Protocol
* Frame genartor timing parameters are clocked on the system clock,
--
cgit v1.2.3-70-g09d2
From a79f40cccd4644c32f6d5ae1ccf091a262e1dc57 Mon Sep 17 00:00:00 2001
From: Anitha Chrisanthus <anitha.chrisanthus@intel.com>
Date: Fri, 8 Jan 2021 14:34:13 -0800
Subject: drm/kmb: Limit supported mode to 1080p
KMB only supports single resolution(1080p), this commit checks for
1920x1080x60 or 1920x1080x59 in crtc_mode_valid.
Also, modes with vfp < 4 are not supported in KMB display. This change
prunes display modes with vfp < 4.
v2: added vfp check
Fixes: 7f7b96a8a0a1 ("drm/kmb: Add support for KeemBay Display")
Co-developed-by: Edmund Dea <edmund.j.dea@intel.com>
Signed-off-by: Edmund Dea <edmund.j.dea@intel.com>
Signed-off-by: Anitha Chrisanthus <anitha.chrisanthus@intel.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link:https://patchwork.freedesktop.org/patch/msgid/20211013233632.471892-2-anitha.chrisanthus@intel.com
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
---
drivers/gpu/drm/kmb/kmb_crtc.c | 34 ++++++++++++++++++++++++++++++++++
drivers/gpu/drm/kmb/kmb_drv.h | 9 ++++++++-
2 files changed, 42 insertions(+), 1 deletion(-)
(limited to 'drivers/gpu')
diff --git a/drivers/gpu/drm/kmb/kmb_crtc.c b/drivers/gpu/drm/kmb/kmb_crtc.c
index 44327bc629ca..08a45e813db7 100644
--- a/drivers/gpu/drm/kmb/kmb_crtc.c
+++ b/drivers/gpu/drm/kmb/kmb_crtc.c
@@ -185,11 +185,45 @@ static void kmb_crtc_atomic_flush(struct drm_crtc *crtc,
spin_unlock_irq(&crtc->dev->event_lock);
}
+static enum drm_mode_status
+ kmb_crtc_mode_valid(struct drm_crtc *crtc,
+ const struct drm_display_mode *mode)
+{
+ int refresh;
+ struct drm_device *dev = crtc->dev;
+ int vfp = mode->vsync_start - mode->vdisplay;
+
+ if (mode->vdisplay < KMB_CRTC_MAX_HEIGHT) {
+ drm_dbg(dev, "height = %d less than %d",
+ mode->vdisplay, KMB_CRTC_MAX_HEIGHT);
+ return MODE_BAD_VVALUE;
+ }
+ if (mode->hdisplay < KMB_CRTC_MAX_WIDTH) {
+ drm_dbg(dev, "width = %d less than %d",
+ mode->hdisplay, KMB_CRTC_MAX_WIDTH);
+ return MODE_BAD_HVALUE;
+ }
+ refresh = drm_mode_vrefresh(mode);
+ if (refresh < KMB_MIN_VREFRESH || refresh > KMB_MAX_VREFRESH) {
+ drm_dbg(dev, "refresh = %d less than %d or greater than %d",
+ refresh, KMB_MIN_VREFRESH, KMB_MAX_VREFRESH);
+ return MODE_BAD;
+ }
+
+ if (vfp < KMB_CRTC_MIN_VFP) {
+ drm_dbg(dev, "vfp = %d less than %d", vfp, KMB_CRTC_MIN_VFP);
+ return MODE_BAD;
+ }
+
+ return MODE_OK;
+}
+
static const struct drm_crtc_helper_funcs kmb_crtc_helper_funcs = {
.atomic_begin = kmb_crtc_atomic_begin,
.atomic_enable = kmb_crtc_atomic_enable,
.atomic_disable = kmb_crtc_atomic_disable,
.atomic_flush = kmb_crtc_atomic_flush,
+ .mode_valid = kmb_crtc_mode_valid,
};
int kmb_setup_crtc(struct drm_device *drm)
diff --git a/drivers/gpu/drm/kmb/kmb_drv.h b/drivers/gpu/drm/kmb/kmb_drv.h
index 69a62e2d03ff..4f7a98667626 100644
--- a/drivers/gpu/drm/kmb/kmb_drv.h
+++ b/drivers/gpu/drm/kmb/kmb_drv.h
@@ -20,11 +20,18 @@
#define DRIVER_MAJOR 1
#define DRIVER_MINOR 1
+/* Platform definitions */
+#define KMB_CRTC_MIN_VFP 4
+#define KMB_CRTC_MAX_WIDTH 1920 /* max width in pixels */
+#define KMB_CRTC_MAX_HEIGHT 1080 /* max height in pixels */
+#define KMB_CRTC_MIN_WIDTH 1920
+#define KMB_CRTC_MIN_HEIGHT 1080
#define KMB_FB_MAX_WIDTH 1920
#define KMB_FB_MAX_HEIGHT 1080
#define KMB_FB_MIN_WIDTH 1
#define KMB_FB_MIN_HEIGHT 1
-
+#define KMB_MIN_VREFRESH 59 /*vertical refresh in Hz */
+#define KMB_MAX_VREFRESH 60 /*vertical refresh in Hz */
#define KMB_LCD_DEFAULT_CLK 200000000
#define KMB_SYS_CLK_MHZ 500
--
cgit v1.2.3-70-g09d2
From 13047a092c6d3f23b7d684b5b3fe46b2b50423b9 Mon Sep 17 00:00:00 2001
From: Edmund Dea <edmund.j.dea@intel.com>
Date: Tue, 20 Apr 2021 15:31:53 -0700
Subject: drm/kmb: Remove clearing DPHY regs
Don't clear the shared DPHY registers common to MIPI Rx and MIPI Tx during
DSI initialization since this was causing MIPI Rx reset. Rest of the
writes are bitwise, so will not affect Mipi Rx side.
Fixes: 98521f4d4b4c ("drm/kmb: Mipi DSI part of the display driver")
Signed-off-by: Edmund Dea <edmund.j.dea@intel.com>
Signed-off-by: Anitha Chrisanthus <anitha.chrisanthus@intel.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211013233632.471892-3-anitha.chrisanthus@intel.com
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
---
drivers/gpu/drm/kmb/kmb_dsi.c | 5 -----
1 file changed, 5 deletions(-)
(limited to 'drivers/gpu')
diff --git a/drivers/gpu/drm/kmb/kmb_dsi.c b/drivers/gpu/drm/kmb/kmb_dsi.c
index 86e8e7943e89..a0669b842ff5 100644
--- a/drivers/gpu/drm/kmb/kmb_dsi.c
+++ b/drivers/gpu/drm/kmb/kmb_dsi.c
@@ -1393,11 +1393,6 @@ int kmb_dsi_mode_set(struct kmb_dsi *kmb_dsi, struct drm_display_mode *mode,
mipi_tx_init_cfg.lane_rate_mbps = data_rate;
}
- kmb_write_mipi(kmb_dsi, DPHY_ENABLE, 0);
- kmb_write_mipi(kmb_dsi, DPHY_INIT_CTRL0, 0);
- kmb_write_mipi(kmb_dsi, DPHY_INIT_CTRL1, 0);
- kmb_write_mipi(kmb_dsi, DPHY_INIT_CTRL2, 0);
-
/* Initialize mipi controller */
mipi_tx_init_cntrl(kmb_dsi, &mipi_tx_init_cfg);
--
cgit v1.2.3-70-g09d2
From 982f8ad666a1123028a077b6b009871a0dc9df26 Mon Sep 17 00:00:00 2001
From: Edmund Dea <edmund.j.dea@intel.com>
Date: Wed, 6 Oct 2021 16:03:48 -0700
Subject: drm/kmb: Disable change of plane parameters
Due to HW limitations, KMB cannot change height, width, or
pixel format after initial plane configuration.
v2: removed memset disp_cfg as it is already zero.
Fixes: 7f7b96a8a0a1 ("drm/kmb: Add support for KeemBay Display")
Signed-off-by: Edmund Dea <edmund.j.dea@intel.com>
Signed-off-by: Anitha Chrisanthus <anitha.chrisanthus@intel.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211013233632.471892-4-anitha.chrisanthus@intel.com
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
---
drivers/gpu/drm/kmb/kmb_drv.h | 1 +
drivers/gpu/drm/kmb/kmb_plane.c | 43 ++++++++++++++++++++++++++++++++++++++++-
drivers/gpu/drm/kmb/kmb_plane.h | 6 ++++++
3 files changed, 49 insertions(+), 1 deletion(-)
(limited to 'drivers/gpu')
diff --git a/drivers/gpu/drm/kmb/kmb_drv.h b/drivers/gpu/drm/kmb/kmb_drv.h
index 4f7a98667626..bf085e95b28f 100644
--- a/drivers/gpu/drm/kmb/kmb_drv.h
+++ b/drivers/gpu/drm/kmb/kmb_drv.h
@@ -57,6 +57,7 @@ struct kmb_drm_private {
spinlock_t irq_lock;
int irq_lcd;
int sys_clk_mhz;
+ struct disp_cfg init_disp_cfg[KMB_MAX_PLANES];
struct layer_status plane_status[KMB_MAX_PLANES];
int kmb_under_flow;
int kmb_flush_done;
diff --git a/drivers/gpu/drm/kmb/kmb_plane.c b/drivers/gpu/drm/kmb/kmb_plane.c
index 06b0c42c9e91..00404ba4126d 100644
--- a/drivers/gpu/drm/kmb/kmb_plane.c
+++ b/drivers/gpu/drm/kmb/kmb_plane.c
@@ -67,8 +67,21 @@ static const u32 kmb_formats_v[] = {
static unsigned int check_pixel_format(struct drm_plane *plane, u32 format)
{
+ struct kmb_drm_private *kmb;
+ struct kmb_plane *kmb_plane = to_kmb_plane(plane);
int i;
+ int plane_id = kmb_plane->id;
+ struct disp_cfg init_disp_cfg;
+ kmb = to_kmb(plane->dev);
+ init_disp_cfg = kmb->init_disp_cfg[plane_id];
+ /* Due to HW limitations, changing pixel format after initial
+ * plane configuration is not supported.
+ */
+ if (init_disp_cfg.format && init_disp_cfg.format != format) {
+ drm_dbg(&kmb->drm, "Cannot change format after initial plane configuration");
+ return -EINVAL;
+ }
for (i = 0; i < plane->format_count; i++) {
if (plane->format_types[i] == format)
return 0;
@@ -81,11 +94,17 @@ static int kmb_plane_atomic_check(struct drm_plane *plane,
{
struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
plane);
+ struct kmb_drm_private *kmb;
+ struct kmb_plane *kmb_plane = to_kmb_plane(plane);
+ int plane_id = kmb_plane->id;
+ struct disp_cfg init_disp_cfg;
struct drm_framebuffer *fb;
int ret;
struct drm_crtc_state *crtc_state;
bool can_position;
+ kmb = to_kmb(plane->dev);
+ init_disp_cfg = kmb->init_disp_cfg[plane_id];
fb = new_plane_state->fb;
if (!fb || !new_plane_state->crtc)
return 0;
@@ -99,6 +118,16 @@ static int kmb_plane_atomic_check(struct drm_plane *plane,
new_plane_state->crtc_w < KMB_FB_MIN_WIDTH ||
new_plane_state->crtc_h < KMB_FB_MIN_HEIGHT)
return -EINVAL;
+
+ /* Due to HW limitations, changing plane height or width after
+ * initial plane configuration is not supported.
+ */
+ if ((init_disp_cfg.width && init_disp_cfg.height) &&
+ (init_disp_cfg.width != fb->width ||
+ init_disp_cfg.height != fb->height)) {
+ drm_dbg(&kmb->drm, "Cannot change plane height or width after initial configuration");
+ return -EINVAL;
+ }
can_position = (plane->type == DRM_PLANE_TYPE_OVERLAY);
crtc_state =
drm_atomic_get_existing_crtc_state(state,
@@ -335,6 +364,7 @@ static void kmb_plane_atomic_update(struct drm_plane *plane,
unsigned char plane_id;
int num_planes;
static dma_addr_t addr[MAX_SUB_PLANES];
+ struct disp_cfg *init_disp_cfg;
if (!plane || !new_plane_state || !old_plane_state)
return;
@@ -357,7 +387,8 @@ static void kmb_plane_atomic_update(struct drm_plane *plane,
}
spin_unlock_irq(&kmb->irq_lock);
- src_w = (new_plane_state->src_w >> 16);
+ init_disp_cfg = &kmb->init_disp_cfg[plane_id];
+ src_w = new_plane_state->src_w >> 16;
src_h = new_plane_state->src_h >> 16;
crtc_x = new_plane_state->crtc_x;
crtc_y = new_plane_state->crtc_y;
@@ -500,6 +531,16 @@ static void kmb_plane_atomic_update(struct drm_plane *plane,
/* Enable DMA */
kmb_write_lcd(kmb, LCD_LAYERn_DMA_CFG(plane_id), dma_cfg);
+
+ /* Save initial display config */
+ if (!init_disp_cfg->width ||
+ !init_disp_cfg->height ||
+ !init_disp_cfg->format) {
+ init_disp_cfg->width = width;
+ init_disp_cfg->height = height;
+ init_disp_cfg->format = fb->format->format;
+ }
+
drm_dbg(&kmb->drm, "dma_cfg=0x%x LCD_DMA_CFG=0x%x\n", dma_cfg,
kmb_read_lcd(kmb, LCD_LAYERn_DMA_CFG(plane_id)));
diff --git a/drivers/gpu/drm/kmb/kmb_plane.h b/drivers/gpu/drm/kmb/kmb_plane.h
index 6e8d22cf8819..b51144044fe8 100644
--- a/drivers/gpu/drm/kmb/kmb_plane.h
+++ b/drivers/gpu/drm/kmb/kmb_plane.h
@@ -63,6 +63,12 @@ struct layer_status {
u32 ctrl;
};
+struct disp_cfg {
+ unsigned int width;
+ unsigned int height;
+ unsigned int format;
+};
+
struct kmb_plane *kmb_plane_init(struct drm_device *drm);
void kmb_plane_destroy(struct drm_plane *plane);
#endif /* __KMB_PLANE_H__ */
--
cgit v1.2.3-70-g09d2
From 004d2719806fb8e355c1bccd538e82c04319d391 Mon Sep 17 00:00:00 2001
From: Anitha Chrisanthus <anitha.chrisanthus@intel.com>
Date: Mon, 19 Jul 2021 16:28:51 -0700
Subject: drm/kmb: Corrected typo in handle_lcd_irq
Check for Overflow bits for layer3 in the irq handler.
Fixes: 7f7b96a8a0a1 ("drm/kmb: Add support for KeemBay Display")
Signed-off-by: Anitha Chrisanthus <anitha.chrisanthus@intel.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211013233632.471892-5-anitha.chrisanthus@intel.com
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
---
drivers/gpu/drm/kmb/kmb_drv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'drivers/gpu')
diff --git a/drivers/gpu/drm/kmb/kmb_drv.c b/drivers/gpu/drm/kmb/kmb_drv.c
index 12ce669650cc..961ac6fb5fcf 100644
--- a/drivers/gpu/drm/kmb/kmb_drv.c
+++ b/drivers/gpu/drm/kmb/kmb_drv.c
@@ -380,7 +380,7 @@ static irqreturn_t handle_lcd_irq(struct drm_device *dev)
if (val & LAYER3_DMA_FIFO_UNDERFLOW)
drm_dbg(&kmb->drm,
"LAYER3:GL1 DMA UNDERFLOW val = 0x%lx", val);
- if (val & LAYER3_DMA_FIFO_UNDERFLOW)
+ if (val & LAYER3_DMA_FIFO_OVERFLOW)
drm_dbg(&kmb->drm,
"LAYER3:GL1 DMA OVERFLOW val = 0x%lx", val);
}
--
cgit v1.2.3-70-g09d2
From 74056092ff415e7e20ce2544689b32ee811c4f0b Mon Sep 17 00:00:00 2001
From: Anitha Chrisanthus <anitha.chrisanthus@intel.com>
Date: Mon, 7 Jun 2021 14:17:11 -0700
Subject: drm/kmb: Enable ADV bridge after modeset
On KMB, ADV bridge must be programmed and powered on prior to
MIPI DSI HW initialization.
v2: changed to atomic_bridge_chain_enable (Sam)
Fixes: 98521f4d4b4c ("drm/kmb: Mipi DSI part of the display driver")
Co-developed-by: Edmund Dea <edmund.j.dea@intel.com>
Signed-off-by: Edmund Dea <edmund.j.dea@intel.com>
Signed-off-by: Anitha Chrisanthus <anitha.chrisanthus@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211019230719.789958-1-anitha.chrisanthus@intel.com
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
---
drivers/gpu/drm/kmb/kmb_crtc.c | 7 ++++---
drivers/gpu/drm/kmb/kmb_dsi.c | 9 +++++----
drivers/gpu/drm/kmb/kmb_dsi.h | 2 +-
3 files changed, 10 insertions(+), 8 deletions(-)
(limited to 'drivers/gpu')
diff --git a/drivers/gpu/drm/kmb/kmb_crtc.c b/drivers/gpu/drm/kmb/kmb_crtc.c
index 08a45e813db7..06613ffeaaf8 100644
--- a/drivers/gpu/drm/kmb/kmb_crtc.c
+++ b/drivers/gpu/drm/kmb/kmb_crtc.c
@@ -66,7 +66,8 @@ static const struct drm_crtc_funcs kmb_crtc_funcs = {
.disable_vblank = kmb_crtc_disable_vblank,
};
-static void kmb_crtc_set_mode(struct drm_crtc *crtc)
+static void kmb_crtc_set_mode(struct drm_crtc *crtc,
+ struct drm_atomic_state *old_state)
{
struct drm_device *dev = crtc->dev;
struct drm_display_mode *m = &crtc->state->adjusted_mode;
@@ -75,7 +76,7 @@ static void kmb_crtc_set_mode(struct drm_crtc *crtc)
unsigned int val = 0;
/* Initialize mipi */
- kmb_dsi_mode_set(kmb->kmb_dsi, m, kmb->sys_clk_mhz);
+ kmb_dsi_mode_set(kmb->kmb_dsi, m, kmb->sys_clk_mhz, old_state);
drm_info(dev,
"vfp= %d vbp= %d vsync_len=%d hfp=%d hbp=%d hsync_len=%d\n",
m->crtc_vsync_start - m->crtc_vdisplay,
@@ -138,7 +139,7 @@ static void kmb_crtc_atomic_enable(struct drm_crtc *crtc,
struct kmb_drm_private *kmb = crtc_to_kmb_priv(crtc);
clk_prepare_enable(kmb->kmb_clk.clk_lcd);
- kmb_crtc_set_mode(crtc);
+ kmb_crtc_set_mode(crtc, state);
drm_crtc_vblank_on(crtc);
}
diff --git a/drivers/gpu/drm/kmb/kmb_dsi.c b/drivers/gpu/drm/kmb/kmb_dsi.c
index a0669b842ff5..f6071882054c 100644
--- a/drivers/gpu/drm/kmb/kmb_dsi.c
+++ b/drivers/gpu/drm/kmb/kmb_dsi.c
@@ -1331,7 +1331,8 @@ static u32 mipi_tx_init_dphy(struct kmb_dsi *kmb_dsi,
return 0;
}
-static void connect_lcd_to_mipi(struct kmb_dsi *kmb_dsi)
+static void connect_lcd_to_mipi(struct kmb_dsi *kmb_dsi,
+ struct drm_atomic_state *old_state)
{
struct regmap *msscam;
@@ -1340,7 +1341,7 @@ static void connect_lcd_to_mipi(struct kmb_dsi *kmb_dsi)
dev_dbg(kmb_dsi->dev, "failed to get msscam syscon");
return;
}
-
+ drm_atomic_bridge_chain_enable(adv_bridge, old_state);
/* DISABLE MIPI->CIF CONNECTION */
regmap_write(msscam, MSS_MIPI_CIF_CFG, 0);
@@ -1351,7 +1352,7 @@ static void connect_lcd_to_mipi(struct kmb_dsi *kmb_dsi)
}
int kmb_dsi_mode_set(struct kmb_dsi *kmb_dsi, struct drm_display_mode *mode,
- int sys_clk_mhz)
+ int sys_clk_mhz, struct drm_atomic_state *old_state)
{
u64 data_rate;
@@ -1399,7 +1400,7 @@ int kmb_dsi_mode_set(struct kmb_dsi *kmb_dsi, struct drm_display_mode *mode,
/* Dphy initialization */
mipi_tx_init_dphy(kmb_dsi, &mipi_tx_init_cfg);
- connect_lcd_to_mipi(kmb_dsi);
+ connect_lcd_to_mipi(kmb_dsi, old_state);
dev_info(kmb_dsi->dev, "mipi hw initialized");
return 0;
diff --git a/drivers/gpu/drm/kmb/kmb_dsi.h b/drivers/gpu/drm/kmb/kmb_dsi.h
index 66b7c500d9bc..09dc88743d77 100644
--- a/drivers/gpu/drm/kmb/kmb_dsi.h
+++ b/drivers/gpu/drm/kmb/kmb_dsi.h
@@ -380,7 +380,7 @@ int kmb_dsi_host_bridge_init(struct device *dev);
struct kmb_dsi *kmb_dsi_init(struct platform_device *pdev);
void kmb_dsi_host_unregister(struct kmb_dsi *kmb_dsi);
int kmb_dsi_mode_set(struct kmb_dsi *kmb_dsi, struct drm_display_mode *mode,
- int sys_clk_mhz);
+ int sys_clk_mhz, struct drm_atomic_state *old_state);
int kmb_dsi_map_mmio(struct kmb_dsi *kmb_dsi);
int kmb_dsi_clk_init(struct kmb_dsi *kmb_dsi);
int kmb_dsi_encoder_init(struct drm_device *dev, struct kmb_dsi *kmb_dsi);
--
cgit v1.2.3-70-g09d2