From 5ccc248cc53708337a2bfe4ea380c20948e8bbed Mon Sep 17 00:00:00 2001 From: Liu Ying Date: Thu, 12 Feb 2015 14:01:29 +0800 Subject: ARM: imx6q: clk: Add support for mipi_core_cfg clock as a shared clock gate The CG8 field of the CCM CCGR3 register is named as 'mipi_core_cfg' clock, according to the i.MX6q/sdl reference manuals. This clock is actually the gate for several clocks, including the hsi_tx_sel clock's output and the video_27m clock's output. The MIPI DSI host controller embedded in the i.MX6q/sdl SoCs uses the video_27m clock to generate PLL reference clock and MIPI core configuration clock. In order to gate/ungate the two MIPI DSI host controller relevant clocks, this patch adds the mipi_core_cfg clock as a shared clock gate. Suggested-by: Philipp Zabel Signed-off-by: Liu Ying Signed-off-by: Shawn Guo diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c index 6843ea9..e59e2c6 100644 --- a/arch/arm/mach-imx/clk-imx6q.c +++ b/arch/arm/mach-imx/clk-imx6q.c @@ -418,6 +418,7 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node) clk[IMX6QDL_CLK_LDB_DI1] = imx_clk_gate2("ldb_di1", "ldb_di1_podf", base + 0x74, 14); clk[IMX6QDL_CLK_IPU2_DI1] = imx_clk_gate2("ipu2_di1", "ipu2_di1_sel", base + 0x74, 10); clk[IMX6QDL_CLK_HSI_TX] = imx_clk_gate2_shared("hsi_tx", "hsi_tx_podf", base + 0x74, 16, &share_count_mipi_core_cfg); + clk[IMX6QDL_CLK_MIPI_CORE_CFG] = imx_clk_gate2_shared("mipi_core_cfg", "video_27m", base + 0x74, 16, &share_count_mipi_core_cfg); if (cpu_is_imx6dl()) /* * The multiplexer and divider of the imx6q clock gpu2d get diff --git a/include/dt-bindings/clock/imx6qdl-clock.h b/include/dt-bindings/clock/imx6qdl-clock.h index 25625bf..dbc828c 100644 --- a/include/dt-bindings/clock/imx6qdl-clock.h +++ b/include/dt-bindings/clock/imx6qdl-clock.h @@ -249,6 +249,7 @@ #define IMX6QDL_PLL7_BYPASS 236 #define IMX6QDL_CLK_GPT_3M 237 #define IMX6QDL_CLK_VIDEO_27M 238 -#define IMX6QDL_CLK_END 239 +#define IMX6QDL_CLK_MIPI_CORE_CFG 239 +#define IMX6QDL_CLK_END 240 #endif /* __DT_BINDINGS_CLOCK_IMX6QDL_H */ -- cgit v0.10.2