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From:   Icenowy Zheng <icenowy@aosc.io>
To:     Maxime Ripard <maxime.ripard@free-electrons.com>,
        Chen-Yu Tsai <wens@csie.org>
Cc:     linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org,
        linux-kernel@vger.kernel.org, Icenowy Zheng <icenowy@aosc.io>
Subject: [PATCH v2] clk: sunxi-ng: add missing hdmi-slow clock for H6 CCU
Date:   Wed, 21 Mar 2018 10:46:25 +0800
Message-Id: <20180321024625.18516-1-icenowy@aosc.io>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

The Allwinner H6 CCU has a "HDMI Slow Clock", which is currently missing
in the ccu-sun50i-h6 driver.

Add this missing clock to the driver.

Fixes: 542353ea ("clk: sunxi-ng: add support for the Allwinner H6 CCU")
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
---
Changes in v2:
- Rearrange clock slice numbers.

 drivers/clk/sunxi-ng/ccu-sun50i-h6.c      |  4 ++++
 drivers/clk/sunxi-ng/ccu-sun50i-h6.h      |  2 +-
 include/dt-bindings/clock/sun50i-h6-ccu.h | 27 ++++++++++++++-------------
 3 files changed, 19 insertions(+), 14 deletions(-)

diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-h6.c b/drivers/clk/sunxi-ng/ccu-sun50i-h6.c
index d5eab49e6350..bdbfe78fe133 100644
--- a/drivers/clk/sunxi-ng/ccu-sun50i-h6.c
+++ b/drivers/clk/sunxi-ng/ccu-sun50i-h6.c
@@ -643,6 +643,8 @@ static SUNXI_CCU_M_WITH_MUX_GATE(hdmi_clk, "hdmi", hdmi_parents, 0xb00,
 				 BIT(31),	/* gate */
 				 0);
 
+static SUNXI_CCU_GATE(hdmi_slow_clk, "hdmi-slow", "osc24M", 0xb04, BIT(31), 0);
+
 static const char * const hdmi_cec_parents[] = { "osc32k", "pll-periph0-2x" };
 static const struct ccu_mux_fixed_prediv hdmi_cec_predivs[] = {
 	{ .index = 1, .div = 36621 },
@@ -876,6 +878,7 @@ static struct ccu_common *sun50i_h6_ccu_clks[] = {
 	&pcie_aux_clk.common,
 	&bus_pcie_clk.common,
 	&hdmi_clk.common,
+	&hdmi_slow_clk.common,
 	&hdmi_cec_clk.common,
 	&bus_hdmi_clk.common,
 	&bus_tcon_top_clk.common,
@@ -1017,6 +1020,7 @@ static struct clk_hw_onecell_data sun50i_h6_hw_clks = {
 		[CLK_PCIE_AUX]		= &pcie_aux_clk.common.hw,
 		[CLK_BUS_PCIE]		= &bus_pcie_clk.common.hw,
 		[CLK_HDMI]		= &hdmi_clk.common.hw,
+		[CLK_HDMI_SLOW]		= &hdmi_slow_clk.common.hw,
 		[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,
diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-h6.h b/drivers/clk/sunxi-ng/ccu-sun50i-h6.h
index ad6da4aa733c..2ccfe4428260 100644
--- a/drivers/clk/sunxi-ng/ccu-sun50i-h6.h
+++ b/drivers/clk/sunxi-ng/ccu-sun50i-h6.h
@@ -51,6 +51,6 @@
 
 #define CLK_BUS_DRAM		60
 
-#define CLK_NUMBER		137
+#define CLK_NUMBER		(CLK_BUS_HDCP + 1)
 
 #endif /* _CCU_SUN50I_H6_H_ */
diff --git a/include/dt-bindings/clock/sun50i-h6-ccu.h b/include/dt-bindings/clock/sun50i-h6-ccu.h
index 6045735a2821..a1545cd60e75 100644
--- a/include/dt-bindings/clock/sun50i-h6-ccu.h
+++ b/include/dt-bindings/clock/sun50i-h6-ccu.h
@@ -107,18 +107,19 @@
 #define CLK_PCIE_AUX		121
 #define CLK_BUS_PCIE		122
 #define CLK_HDMI		123
-#define CLK_HDMI_CEC		124
-#define CLK_BUS_HDMI		125
-#define CLK_BUS_TCON_TOP	126
-#define CLK_TCON_LCD0		127
-#define CLK_BUS_TCON_LCD0	128
-#define CLK_TCON_TV0		129
-#define CLK_BUS_TCON_TV0	130
-#define CLK_CSI_CCI		131
-#define CLK_CSI_TOP		132
-#define CLK_CSI_MCLK		133
-#define CLK_BUS_CSI		134
-#define CLK_HDCP		135
-#define CLK_BUS_HDCP		136
+#define CLK_HDMI_SLOW		124
+#define CLK_HDMI_CEC		125
+#define CLK_BUS_HDMI		126
+#define CLK_BUS_TCON_TOP	127
+#define CLK_TCON_LCD0		128
+#define CLK_BUS_TCON_LCD0	129
+#define CLK_TCON_TV0		130
+#define CLK_BUS_TCON_TV0	131
+#define CLK_CSI_CCI		132
+#define CLK_CSI_TOP		133
+#define CLK_CSI_MCLK		134
+#define CLK_BUS_CSI		135
+#define CLK_HDCP		136
+#define CLK_BUS_HDCP		137
 
 #endif /* _DT_BINDINGS_CLK_SUN50I_H6_H_ */
-- 
2.15.1