diff mbox series

[V2,2/2] clk: sunxi-ng: h616: Add clock/reset for LCD TCON

Message ID 20250213172248.158447-3-macroalpha82@gmail.com (mailing list archive)
State Under Review
Headers show
Series Add Clock and Reset for TCON LCD | expand

Commit Message

Chris Morgan Feb. 13, 2025, 5:22 p.m. UTC 
From: Chris Morgan <macromorgan@hotmail.com>

Add the required clock and reset which is used for the LCD TCON. Please
note that these clocks are exposed on the T507, H616, and H700; however
the H616 does not expose an LCD controller for which these clocks are
needed.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
---
 drivers/clk/sunxi-ng/ccu-sun50i-h616.c | 24 ++++++++++++++++++++++++
 drivers/clk/sunxi-ng/ccu-sun50i-h616.h |  2 +-
 2 files changed, 25 insertions(+), 1 deletion(-)

Comments

Ryan Walklin Feb. 16, 2025, 10:02 a.m. UTC | #1 
On Fri, 14 Feb 2025, at 6:22 AM, Chris Morgan wrote:
> From: Chris Morgan <macromorgan@hotmail.com>
>
> Add the required clock and reset which is used for the LCD TCON. Please
> note that these clocks are exposed on the T507, H616, and H700; however
> the H616 does not expose an LCD controller for which these clocks are
> needed.
>
> Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
> Reviewed-by: Andre Przywara <andre.przywara@arm.com>

Hi Chris,

Thanks for these! Can confirm that these two patches along with the recently posted DE33 [1] and H616 DT patch series [2] allow LCD display output on the RG35XX.

Tested-by: Ryan Walklin <ryan@testtoast.com>

Regards,

Ryan

1. https://lore.kernel.org/linux-sunxi/20250216085432.6373-2-ryan@testtoast.com
2. https://lore.kernel.org/linux-sunxi/20250216092827.15444-1-ryan@testtoast.com
diff mbox series

Patch

diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-h616.c b/drivers/clk/sunxi-ng/ccu-sun50i-h616.c
index 190816c35da9..40ab6873b797 100644
--- a/drivers/clk/sunxi-ng/ccu-sun50i-h616.c
+++ b/drivers/clk/sunxi-ng/ccu-sun50i-h616.c
@@ -645,6 +645,20 @@  static const char * const tcon_tv_parents[] = { "pll-video0",
 						"pll-video0-4x",
 						"pll-video1",
 						"pll-video1-4x" };
+static SUNXI_CCU_MUX_WITH_GATE(tcon_lcd0_clk, "tcon-lcd0",
+			       tcon_tv_parents, 0xb60,
+			       24, 3,	/* mux */
+			       BIT(31),	/* gate */
+			       CLK_SET_RATE_PARENT);
+static SUNXI_CCU_MUX_WITH_GATE(tcon_lcd1_clk, "tcon-lcd1",
+			       tcon_tv_parents, 0xb64,
+			       24, 3,	/* mux */
+			       BIT(31),	/* gate */
+			       CLK_SET_RATE_PARENT);
+static SUNXI_CCU_GATE(bus_tcon_lcd0_clk, "bus-tcon-lcd0", "ahb3",
+		      0xb7c, BIT(0), 0);
+static SUNXI_CCU_GATE(bus_tcon_lcd1_clk, "bus-tcon-lcd1", "ahb3",
+		      0xb7c, BIT(1), 0);
 static SUNXI_CCU_MP_WITH_MUX_GATE(tcon_tv0_clk, "tcon-tv0",
 				  tcon_tv_parents, 0xb80,
 				  0, 4,		/* M */
@@ -855,8 +869,12 @@  static struct ccu_common *sun50i_h616_ccu_clks[] = {
 	&hdmi_cec_clk.common,
 	&bus_hdmi_clk.common,
 	&bus_tcon_top_clk.common,
+	&tcon_lcd0_clk.common,
+	&tcon_lcd1_clk.common,
 	&tcon_tv0_clk.common,
 	&tcon_tv1_clk.common,
+	&bus_tcon_lcd0_clk.common,
+	&bus_tcon_lcd1_clk.common,
 	&bus_tcon_tv0_clk.common,
 	&bus_tcon_tv1_clk.common,
 	&tve0_clk.common,
@@ -989,8 +1007,12 @@  static struct clk_hw_onecell_data sun50i_h616_hw_clks = {
 		[CLK_HDMI_CEC]		= &hdmi_cec_clk.common.hw,
 		[CLK_BUS_HDMI]		= &bus_hdmi_clk.common.hw,
 		[CLK_BUS_TCON_TOP]	= &bus_tcon_top_clk.common.hw,
+		[CLK_TCON_LCD0]		= &tcon_lcd0_clk.common.hw,
+		[CLK_TCON_LCD1]		= &tcon_lcd1_clk.common.hw,
 		[CLK_TCON_TV0]		= &tcon_tv0_clk.common.hw,
 		[CLK_TCON_TV1]		= &tcon_tv1_clk.common.hw,
+		[CLK_BUS_TCON_LCD0]	= &bus_tcon_lcd0_clk.common.hw,
+		[CLK_BUS_TCON_LCD1]	= &bus_tcon_lcd1_clk.common.hw,
 		[CLK_BUS_TCON_TV0]	= &bus_tcon_tv0_clk.common.hw,
 		[CLK_BUS_TCON_TV1]	= &bus_tcon_tv1_clk.common.hw,
 		[CLK_TVE0]		= &tve0_clk.common.hw,
@@ -1062,6 +1084,8 @@  static const struct ccu_reset_map sun50i_h616_ccu_resets[] = {
 	[RST_BUS_HDMI]		= { 0xb1c, BIT(16) },
 	[RST_BUS_HDMI_SUB]	= { 0xb1c, BIT(17) },
 	[RST_BUS_TCON_TOP]	= { 0xb5c, BIT(16) },
+	[RST_BUS_TCON_LCD0]	= { 0xb7c, BIT(16) },
+	[RST_BUS_TCON_LCD1]	= { 0xb7c, BIT(17) },
 	[RST_BUS_TCON_TV0]	= { 0xb9c, BIT(16) },
 	[RST_BUS_TCON_TV1]	= { 0xb9c, BIT(17) },
 	[RST_BUS_TVE_TOP]	= { 0xbbc, BIT(16) },
diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-h616.h b/drivers/clk/sunxi-ng/ccu-sun50i-h616.h
index a75803b49f6a..7056f293a8e0 100644
--- a/drivers/clk/sunxi-ng/ccu-sun50i-h616.h
+++ b/drivers/clk/sunxi-ng/ccu-sun50i-h616.h
@@ -51,6 +51,6 @@ 
 
 #define CLK_BUS_DRAM		56
 
-#define CLK_NUMBER		(CLK_BUS_GPADC + 1)
+#define CLK_NUMBER		(CLK_BUS_TCON_LCD1 + 1)
 
 #endif /* _CCU_SUN50I_H616_H_ */