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Sun, 5 May 2019 06:18:55 +0000 Received: from DB3PR0402MB3916.eurprd04.prod.outlook.com ([fe80::e8ca:4f6b:e43:c170]) by DB3PR0402MB3916.eurprd04.prod.outlook.com ([fe80::e8ca:4f6b:e43:c170%3]) with mapi id 15.20.1856.012; Sun, 5 May 2019 06:18:55 +0000 From: Anson Huang To: "mturquette@baylibre.com" , "sboyd@kernel.org" , "shawnguo@kernel.org" , "s.hauer@pengutronix.de" , "kernel@pengutronix.de" , "festevam@gmail.com" , "l.stach@pengutronix.de" , Aisheng Dong , "pp@emlix.com" , "tiny.windzz@gmail.com" , "colin.didier@devialet.com" , "robh@kernel.org" , Jacky Bai , Leonard Crestez , "hofrat@osadl.org" , "michael@amarulasolutions.com" , "stefan@agner.ch" , Abel Vesa , "linux-clk@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" Subject: [PATCH 2/2] clk: imx: Use imx_mmdc_mask_handshake() API for masking MMDC channel Thread-Topic: [PATCH 2/2] clk: imx: Use imx_mmdc_mask_handshake() API for masking MMDC channel Thread-Index: AQHVAwpq3WdYtTz4rkK30M4PU6T31A== Date: Sun, 5 May 2019 06:18:54 +0000 Message-ID: <1557036830-13567-2-git-send-email-Anson.Huang@nxp.com> References: <1557036830-13567-1-git-send-email-Anson.Huang@nxp.com> In-Reply-To: <1557036830-13567-1-git-send-email-Anson.Huang@nxp.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.7.4 x-clientproxiedby: HK0P153CA0001.APCP153.PROD.OUTLOOK.COM (2603:1096:203:18::13) To DB3PR0402MB3916.eurprd04.prod.outlook.com (2603:10a6:8:10::18) authentication-results: spf=none (sender IP is ) smtp.mailfrom=anson.huang@nxp.com; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Use imx_mmdc_mask_handshake() API instead of programming CCM register directly in each platform to mask unused MMDC channel's handshake. Signed-off-by: Anson Huang --- drivers/clk/imx/clk-imx6q.c | 13 +------------ drivers/clk/imx/clk-imx6sl.c | 5 +---- drivers/clk/imx/clk-imx6sll.c | 3 +-- drivers/clk/imx/clk-imx6sx.c | 5 +---- drivers/clk/imx/clk-imx6ul.c | 5 +---- 5 files changed, 5 insertions(+), 26 deletions(-) diff --git a/drivers/clk/imx/clk-imx6q.c b/drivers/clk/imx/clk-imx6q.c index 708e7c5..077276b 100644 --- a/drivers/clk/imx/clk-imx6q.c +++ b/drivers/clk/imx/clk-imx6q.c @@ -260,25 +260,14 @@ static bool pll6_bypassed(struct device_node *node) return false; } -#define CCM_CCDR 0x04 #define CCM_CCSR 0x0c #define CCM_CS2CDR 0x2c -#define CCDR_MMDC_CH1_MASK BIT(16) #define CCSR_PLL3_SW_CLK_SEL BIT(0) #define CS2CDR_LDB_DI0_CLK_SEL_SHIFT 9 #define CS2CDR_LDB_DI1_CLK_SEL_SHIFT 12 -static void __init imx6q_mmdc_ch1_mask_handshake(void __iomem *ccm_base) -{ - unsigned int reg; - - reg = readl_relaxed(ccm_base + CCM_CCDR); - reg |= CCDR_MMDC_CH1_MASK; - writel_relaxed(reg, ccm_base + CCM_CCDR); -} - /* * The only way to disable the MMDC_CH1 clock is to move it to pll3_sw_clk * via periph2_clk2_sel and then to disable pll3_sw_clk by selecting the @@ -651,7 +640,7 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node) disable_anatop_clocks(anatop_base); - imx6q_mmdc_ch1_mask_handshake(base); + imx_mmdc_mask_handshake(base, 1); if (clk_on_imx6qp()) { clk[IMX6QDL_CLK_LDB_DI0_SEL] = imx_clk_mux_flags("ldb_di0_sel", base + 0x2c, 9, 3, ldb_di_sels, ARRAY_SIZE(ldb_di_sels), CLK_SET_RATE_PARENT); diff --git a/drivers/clk/imx/clk-imx6sl.c b/drivers/clk/imx/clk-imx6sl.c index e13d881..acb5983 100644 --- a/drivers/clk/imx/clk-imx6sl.c +++ b/drivers/clk/imx/clk-imx6sl.c @@ -17,8 +17,6 @@ #include "clk.h" -#define CCDR 0x4 -#define BM_CCM_CCDR_MMDC_CH0_MASK (1 << 17) #define CCSR 0xc #define BM_CCSR_PLL1_SW_CLK_SEL (1 << 2) #define CACRR 0x10 @@ -414,8 +412,7 @@ static void __init imx6sl_clocks_init(struct device_node *ccm_node) clks[IMX6SL_CLK_USDHC4] = imx_clk_gate2("usdhc4", "usdhc4_podf", base + 0x80, 8); /* Ensure the MMDC CH0 handshake is bypassed */ - writel_relaxed(readl_relaxed(base + CCDR) | - BM_CCM_CCDR_MMDC_CH0_MASK, base + CCDR); + imx_mmdc_mask_handshake(base, 0); imx_check_clocks(clks, ARRAY_SIZE(clks)); diff --git a/drivers/clk/imx/clk-imx6sll.c b/drivers/clk/imx/clk-imx6sll.c index 7eea448..3aa71c9 100644 --- a/drivers/clk/imx/clk-imx6sll.c +++ b/drivers/clk/imx/clk-imx6sll.c @@ -16,7 +16,6 @@ #include "clk.h" #define CCM_ANALOG_PLL_BYPASS (0x1 << 16) -#define BM_CCM_CCDR_MMDC_CH0_MASK (0x2 << 16) #define xPLL_CLR(offset) (offset + 0x8) static const char *pll_bypass_src_sels[] = { "osc", "dummy", }; @@ -340,7 +339,7 @@ static void __init imx6sll_clocks_init(struct device_node *ccm_node) clks[IMX6SLL_CLK_USDHC3] = imx_clk_gate2("usdhc3", "usdhc3_podf", base + 0x80, 6); /* mask handshake of mmdc */ - writel_relaxed(BM_CCM_CCDR_MMDC_CH0_MASK, base + 0x4); + imx_mmdc_mask_handshake(base, 0); imx_check_clocks(clks, ARRAY_SIZE(clks)); diff --git a/drivers/clk/imx/clk-imx6sx.c b/drivers/clk/imx/clk-imx6sx.c index 91558b0..24f7b4d 100644 --- a/drivers/clk/imx/clk-imx6sx.c +++ b/drivers/clk/imx/clk-imx6sx.c @@ -22,9 +22,6 @@ #include "clk.h" -#define CCDR 0x4 -#define BM_CCM_CCDR_MMDC_CH0_MASK (0x2 << 16) - static const char *step_sels[] = { "osc", "pll2_pfd2_396m", }; static const char *pll1_sw_sels[] = { "pll1_sys", "step", }; static const char *periph_pre_sels[] = { "pll2_bus", "pll2_pfd2_396m", "pll2_pfd0_352m", "pll2_198m", }; @@ -488,7 +485,7 @@ static void __init imx6sx_clocks_init(struct device_node *ccm_node) clks[IMX6SX_CLK_CKO2] = imx_clk_gate("cko2", "cko2_podf", base + 0x60, 24); /* mask handshake of mmdc */ - writel_relaxed(BM_CCM_CCDR_MMDC_CH0_MASK, base + CCDR); + imx_mmdc_mask_handshake(base, 0); imx_check_clocks(clks, ARRAY_SIZE(clks)); diff --git a/drivers/clk/imx/clk-imx6ul.c b/drivers/clk/imx/clk-imx6ul.c index fd60d15..4bf3226 100644 --- a/drivers/clk/imx/clk-imx6ul.c +++ b/drivers/clk/imx/clk-imx6ul.c @@ -22,9 +22,6 @@ #include "clk.h" -#define BM_CCM_CCDR_MMDC_CH0_MASK (0x2 << 16) -#define CCDR 0x4 - static const char *pll_bypass_src_sels[] = { "osc", "dummy", }; static const char *pll1_bypass_sels[] = { "pll1", "pll1_bypass_src", }; static const char *pll2_bypass_sels[] = { "pll2", "pll2_bypass_src", }; @@ -464,7 +461,7 @@ static void __init imx6ul_clocks_init(struct device_node *ccm_node) clks[IMX6UL_CLK_CKO2] = imx_clk_gate("cko2", "cko2_podf", base + 0x60, 24); /* mask handshake of mmdc */ - writel_relaxed(BM_CCM_CCDR_MMDC_CH0_MASK, base + CCDR); + imx_mmdc_mask_handshake(base, 0); imx_check_clocks(clks, ARRAY_SIZE(clks)); -- 2.7.4 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel