From 2cf4b53b6e2b79d8ff66d5d56fe4dcac74e15da5 Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Fri, 27 Jun 2014 16:32:46 +0800 Subject: [PATCH] ENGR00318063-14: ARM: imx6sx: set pll2_bus as the default parent of QSPI clock We already know that pll2_bus is the best parent of QSPI clock. Let's set it up in clock initialization as the default, so that we can save those implicit parent switching and rate changing calls from clock framework. shawn.guo: cherry-pick commit ecef6a715f1a from imx_3.10.y Signed-off-by: Shawn Guo --- arch/arm/mach-imx/clk-imx6sx.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-imx/clk-imx6sx.c b/arch/arm/mach-imx/clk-imx6sx.c index 6a57c7b7fd5a..97d426331dfa 100644 --- a/arch/arm/mach-imx/clk-imx6sx.c +++ b/arch/arm/mach-imx/clk-imx6sx.c @@ -296,13 +296,13 @@ static void __init imx6sx_clocks_init(struct device_node *ccm_node) clks[IMX6SX_CLK_SSI3_SEL] = imx_clk_mux("ssi3_sel", base + 0x1c, 14, 2, ssi_sels, ARRAY_SIZE(ssi_sels)); clks[IMX6SX_CLK_SSI2_SEL] = imx_clk_mux("ssi2_sel", base + 0x1c, 12, 2, ssi_sels, ARRAY_SIZE(ssi_sels)); clks[IMX6SX_CLK_SSI1_SEL] = imx_clk_mux("ssi1_sel", base + 0x1c, 10, 2, ssi_sels, ARRAY_SIZE(ssi_sels)); - clks[IMX6SX_CLK_QSPI1_SEL] = imx_clk_mux_flags("qspi1_sel", base + 0x1c, 7, 3, qspi1_sels, ARRAY_SIZE(qspi1_sels), CLK_SET_RATE_PARENT); + clks[IMX6SX_CLK_QSPI1_SEL] = imx_clk_mux("qspi1_sel", base + 0x1c, 7, 3, qspi1_sels, ARRAY_SIZE(qspi1_sels)); clks[IMX6SX_CLK_PERCLK_SEL] = imx_clk_mux("perclk_sel", base + 0x1c, 6, 1, perclk_sels, ARRAY_SIZE(perclk_sels)); clks[IMX6SX_CLK_VID_SEL] = imx_clk_mux("vid_sel", base + 0x20, 21, 3, vid_sels, ARRAY_SIZE(vid_sels)); clks[IMX6SX_CLK_ESAI_SEL] = imx_clk_mux("esai_sel", base + 0x20, 19, 2, audio_sels, ARRAY_SIZE(audio_sels)); clks[IMX6SX_CLK_CAN_SEL] = imx_clk_mux("can_sel", base + 0x20, 8, 2, can_sels, ARRAY_SIZE(can_sels)); clks[IMX6SX_CLK_UART_SEL] = imx_clk_mux("uart_sel", base + 0x24, 6, 1, uart_sels, ARRAY_SIZE(uart_sels)); - clks[IMX6SX_CLK_QSPI2_SEL] = imx_clk_mux_flags("qspi2_sel", base + 0x2c, 15, 3, qspi2_sels, ARRAY_SIZE(qspi2_sels), CLK_SET_RATE_PARENT); + clks[IMX6SX_CLK_QSPI2_SEL] = imx_clk_mux("qspi2_sel", base + 0x2c, 15, 3, qspi2_sels, ARRAY_SIZE(qspi2_sels)); clks[IMX6SX_CLK_SPDIF_SEL] = imx_clk_mux("spdif_sel", base + 0x30, 20, 2, audio_sels, ARRAY_SIZE(audio_sels)); clks[IMX6SX_CLK_AUDIO_SEL] = imx_clk_mux("audio_sel", base + 0x30, 7, 2, audio_sels, ARRAY_SIZE(audio_sels)); clks[IMX6SX_CLK_ENET_PRE_SEL] = imx_clk_mux("enet_pre_sel", base + 0x34, 15, 3, enet_pre_sels, ARRAY_SIZE(enet_pre_sels)); @@ -577,6 +577,10 @@ static void __init imx6sx_clocks_init(struct device_node *ccm_node) if (uart_from_osc) imx_clk_set_parent(clks[IMX6SX_CLK_UART_SEL], clks[IMX6SX_CLK_OSC]); + /* pll2_bus is the best parent of QSPI clock */ + imx_clk_set_parent(clks[IMX6SX_CLK_QSPI1_SEL], clks[IMX6SX_CLK_PLL2_BUS]); + imx_clk_set_parent(clks[IMX6SX_CLK_QSPI2_SEL], clks[IMX6SX_CLK_PLL2_BUS]); + /* * Enable clocks only after both parent and rate are all initialized * as needed -- 2.39.2