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[92.34.201.90]) by smtp.gmail.com with ESMTPSA id x4sm13907371ljb.66.2019.12.28.14.26.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 28 Dec 2019 14:26:20 -0800 (PST) From: Linus Walleij To: lee.jones@linaro.org, linux-kernel@vger.kernel.org Cc: Linus Walleij , Stephan Gerhold , Ulf Hansson Subject: [PATCH 1/2] mfd: dbx500-prcmu: Drop set_display_clocks() Date: Sat, 28 Dec 2019 23:26:14 +0100 Message-Id: <20191228222615.24189-1-linus.walleij@linaro.org> X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The display clocks are handled by the generic clock framework since ages, this code is completely unused and misleading. Delete it. Cc: Stephan Gerhold Cc: Ulf Hansson Signed-off-by: Linus Walleij --- drivers/mfd/db8500-prcmu.c | 30 ------------------------------ include/linux/mfd/db8500-prcmu.h | 6 ------ include/linux/mfd/dbx500-prcmu.h | 10 ---------- 3 files changed, 46 deletions(-) -- 2.21.0 diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c index 26d967a1a046..5f0cfeec8b6a 100644 --- a/drivers/mfd/db8500-prcmu.c +++ b/drivers/mfd/db8500-prcmu.c @@ -555,14 +555,6 @@ static struct dsiescclk dsiescclk[3] = { #define PRCMU_CLK_38_SRC (1 << 10) #define PRCMU_CLK_38_DIV (1 << 11) -/* PLLDIV=12, PLLSW=4 (PLLDDR) */ -#define PRCMU_DSI_CLOCK_SETTING 0x0000008C - -/* DPI 50000000 Hz */ -#define PRCMU_DPI_CLOCK_SETTING ((1 << PRCMU_CLK_PLL_SW_SHIFT) | \ - (16 << PRCMU_CLK_PLL_DIV_SHIFT)) -#define PRCMU_DSI_LP_CLOCK_SETTING 0x00000E00 - /* D=101, N=1, R=4, SELDIV2=0 */ #define PRCMU_PLLDSI_FREQ_SETTING 0x00040165 @@ -616,28 +608,6 @@ int db8500_prcmu_disable_dsipll(void) return 0; } -int db8500_prcmu_set_display_clocks(void) -{ - unsigned long flags; - - spin_lock_irqsave(&clk_mgt_lock, flags); - - /* Grab the HW semaphore. */ - while ((readl(PRCM_SEM) & PRCM_SEM_PRCM_SEM) != 0) - cpu_relax(); - - writel(PRCMU_DSI_CLOCK_SETTING, prcmu_base + PRCM_HDMICLK_MGT); - writel(PRCMU_DSI_LP_CLOCK_SETTING, prcmu_base + PRCM_TVCLK_MGT); - writel(PRCMU_DPI_CLOCK_SETTING, prcmu_base + PRCM_LCDCLK_MGT); - - /* Release the HW semaphore. */ - writel(0, PRCM_SEM); - - spin_unlock_irqrestore(&clk_mgt_lock, flags); - - return 0; -} - u32 db8500_prcmu_read(unsigned int reg) { return readl(prcmu_base + reg); diff --git a/include/linux/mfd/db8500-prcmu.h b/include/linux/mfd/db8500-prcmu.h index 1fc75d2b4a38..7d0c442e0c25 100644 --- a/include/linux/mfd/db8500-prcmu.h +++ b/include/linux/mfd/db8500-prcmu.h @@ -525,7 +525,6 @@ u8 db8500_prcmu_get_power_state_result(void); void db8500_prcmu_enable_wakeups(u32 wakeups); int db8500_prcmu_set_epod(u16 epod_id, u8 epod_state); int db8500_prcmu_request_clock(u8 clock, bool enable); -int db8500_prcmu_set_display_clocks(void); int db8500_prcmu_disable_dsipll(void); int db8500_prcmu_enable_dsipll(void); void db8500_prcmu_config_abb_event_readout(u32 abb_events); @@ -682,11 +681,6 @@ static inline int db8500_prcmu_request_clock(u8 clock, bool enable) return 0; } -static inline int db8500_prcmu_set_display_clocks(void) -{ - return 0; -} - static inline int db8500_prcmu_disable_dsipll(void) { return 0; diff --git a/include/linux/mfd/dbx500-prcmu.h b/include/linux/mfd/dbx500-prcmu.h index e2571040c7e8..812b6c3c4ef6 100644 --- a/include/linux/mfd/dbx500-prcmu.h +++ b/include/linux/mfd/dbx500-prcmu.h @@ -321,11 +321,6 @@ static inline bool prcmu_is_ac_wake_requested(void) return db8500_prcmu_is_ac_wake_requested(); } -static inline int prcmu_set_display_clocks(void) -{ - return db8500_prcmu_set_display_clocks(); -} - static inline int prcmu_disable_dsipll(void) { return db8500_prcmu_disable_dsipll(); @@ -511,11 +506,6 @@ static inline bool prcmu_is_ac_wake_requested(void) return false; } -static inline int prcmu_set_display_clocks(void) -{ - return 0; -} - static inline int prcmu_disable_dsipll(void) { return 0; From patchwork Sat Dec 28 22:26:15 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Linus Walleij X-Patchwork-Id: 182498 Delivered-To: patch@linaro.org Received: by 2002:a92:815a:0:0:0:0:0 with SMTP id e87csp4606323ild; Sat, 28 Dec 2019 14:26:29 -0800 (PST) X-Google-Smtp-Source: APXvYqweMz7ifk4BBKYuitRcn6h2mUCWBq/SWTbevTiVllfT3NoZnMdltxJKXAT3iXXHm8U2R9Nt X-Received: by 2002:a05:6830:1188:: with SMTP id u8mr65414892otq.274.1577571989491; Sat, 28 Dec 2019 14:26:29 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1577571989; cv=none; d=google.com; s=arc-20160816; b=YYsWJu1D6yThX0W0ohgMVFrx7NDUvHF4BarQRRkYUec6vWG3KhqgjeBWqCDml05TKC I3uPYVorVj+m51RNnQ1WQSbgxLHRiUPF6Gy7q++0s5PP9pGgSy9yj912Bk5oDQFnJ+gB M14DQ1GsmPC9TnJLROpG5yfYnLd191xxktEqhvxX6hlFgEoBzoNmD4csAUw4j+qAXrhj sJnC0JSn74tk8EeVPaQJKQmLPMTWbhjvGfe8dyjGvOjHX0gSWSecVVTnUUeai9G+4vjf jNKnbEu3NE/G42OClfaxI65p9enhKqetaNo4Olk0DYfKiv2TEqJMwGQeh/eBBsJm2m7l 0uzg== ARC-Message-Signature: i=1; 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[92.34.201.90]) by smtp.gmail.com with ESMTPSA id x4sm13907371ljb.66.2019.12.28.14.26.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 28 Dec 2019 14:26:22 -0800 (PST) From: Linus Walleij To: lee.jones@linaro.org, linux-kernel@vger.kernel.org Cc: Linus Walleij , Stephan Gerhold , Ulf Hansson Subject: [PATCH 2/2] mfd: dbx500-prcmu: Drop DSI pll clock functions Date: Sat, 28 Dec 2019 23:26:15 +0100 Message-Id: <20191228222615.24189-2-linus.walleij@linaro.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20191228222615.24189-1-linus.walleij@linaro.org> References: <20191228222615.24189-1-linus.walleij@linaro.org> MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The DSI PLLs are handled by the generic clock framework since ages, this code is completely unused and misleading. Delete it. Cc: Stephan Gerhold Cc: Ulf Hansson Signed-off-by: Linus Walleij --- drivers/mfd/db8500-prcmu.c | 66 -------------------------------- include/linux/mfd/db8500-prcmu.h | 12 ------ include/linux/mfd/dbx500-prcmu.h | 20 ---------- 3 files changed, 98 deletions(-) -- 2.21.0 diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c index 5f0cfeec8b6a..0452b43b0423 100644 --- a/drivers/mfd/db8500-prcmu.c +++ b/drivers/mfd/db8500-prcmu.c @@ -542,72 +542,6 @@ static struct dsiescclk dsiescclk[3] = { } }; - -/* -* Used by MCDE to setup all necessary PRCMU registers -*/ -#define PRCMU_RESET_DSIPLL 0x00004000 -#define PRCMU_UNCLAMP_DSIPLL 0x00400800 - -#define PRCMU_CLK_PLL_DIV_SHIFT 0 -#define PRCMU_CLK_PLL_SW_SHIFT 5 -#define PRCMU_CLK_38 (1 << 9) -#define PRCMU_CLK_38_SRC (1 << 10) -#define PRCMU_CLK_38_DIV (1 << 11) - -/* D=101, N=1, R=4, SELDIV2=0 */ -#define PRCMU_PLLDSI_FREQ_SETTING 0x00040165 - -#define PRCMU_ENABLE_PLLDSI 0x00000001 -#define PRCMU_DISABLE_PLLDSI 0x00000000 -#define PRCMU_RELEASE_RESET_DSS 0x0000400C -#define PRCMU_DSI_PLLOUT_SEL_SETTING 0x00000202 -/* ESC clk, div0=1, div1=1, div2=3 */ -#define PRCMU_ENABLE_ESCAPE_CLOCK_DIV 0x07030101 -#define PRCMU_DISABLE_ESCAPE_CLOCK_DIV 0x00030101 -#define PRCMU_DSI_RESET_SW 0x00000007 - -#define PRCMU_PLLDSI_LOCKP_LOCKED 0x3 - -int db8500_prcmu_enable_dsipll(void) -{ - int i; - - /* Clear DSIPLL_RESETN */ - writel(PRCMU_RESET_DSIPLL, PRCM_APE_RESETN_CLR); - /* Unclamp DSIPLL in/out */ - writel(PRCMU_UNCLAMP_DSIPLL, PRCM_MMIP_LS_CLAMP_CLR); - - /* Set DSI PLL FREQ */ - writel(PRCMU_PLLDSI_FREQ_SETTING, PRCM_PLLDSI_FREQ); - writel(PRCMU_DSI_PLLOUT_SEL_SETTING, PRCM_DSI_PLLOUT_SEL); - /* Enable Escape clocks */ - writel(PRCMU_ENABLE_ESCAPE_CLOCK_DIV, PRCM_DSITVCLK_DIV); - - /* Start DSI PLL */ - writel(PRCMU_ENABLE_PLLDSI, PRCM_PLLDSI_ENABLE); - /* Reset DSI PLL */ - writel(PRCMU_DSI_RESET_SW, PRCM_DSI_SW_RESET); - for (i = 0; i < 10; i++) { - if ((readl(PRCM_PLLDSI_LOCKP) & PRCMU_PLLDSI_LOCKP_LOCKED) - == PRCMU_PLLDSI_LOCKP_LOCKED) - break; - udelay(100); - } - /* Set DSIPLL_RESETN */ - writel(PRCMU_RESET_DSIPLL, PRCM_APE_RESETN_SET); - return 0; -} - -int db8500_prcmu_disable_dsipll(void) -{ - /* Disable dsi pll */ - writel(PRCMU_DISABLE_PLLDSI, PRCM_PLLDSI_ENABLE); - /* Disable escapeclock */ - writel(PRCMU_DISABLE_ESCAPE_CLOCK_DIV, PRCM_DSITVCLK_DIV); - return 0; -} - u32 db8500_prcmu_read(unsigned int reg) { return readl(prcmu_base + reg); diff --git a/include/linux/mfd/db8500-prcmu.h b/include/linux/mfd/db8500-prcmu.h index 7d0c442e0c25..4b63d3ecdcff 100644 --- a/include/linux/mfd/db8500-prcmu.h +++ b/include/linux/mfd/db8500-prcmu.h @@ -525,8 +525,6 @@ u8 db8500_prcmu_get_power_state_result(void); void db8500_prcmu_enable_wakeups(u32 wakeups); int db8500_prcmu_set_epod(u16 epod_id, u8 epod_state); int db8500_prcmu_request_clock(u8 clock, bool enable); -int db8500_prcmu_disable_dsipll(void); -int db8500_prcmu_enable_dsipll(void); void db8500_prcmu_config_abb_event_readout(u32 abb_events); void db8500_prcmu_get_abb_event_buffer(void __iomem **buf); int db8500_prcmu_config_esram0_deep_sleep(u8 state); @@ -681,16 +679,6 @@ static inline int db8500_prcmu_request_clock(u8 clock, bool enable) return 0; } -static inline int db8500_prcmu_disable_dsipll(void) -{ - return 0; -} - -static inline int db8500_prcmu_enable_dsipll(void) -{ - return 0; -} - static inline int db8500_prcmu_config_esram0_deep_sleep(u8 state) { return 0; diff --git a/include/linux/mfd/dbx500-prcmu.h b/include/linux/mfd/dbx500-prcmu.h index 812b6c3c4ef6..e6ee2ec35de9 100644 --- a/include/linux/mfd/dbx500-prcmu.h +++ b/include/linux/mfd/dbx500-prcmu.h @@ -321,16 +321,6 @@ static inline bool prcmu_is_ac_wake_requested(void) return db8500_prcmu_is_ac_wake_requested(); } -static inline int prcmu_disable_dsipll(void) -{ - return db8500_prcmu_disable_dsipll(); -} - -static inline int prcmu_enable_dsipll(void) -{ - return db8500_prcmu_enable_dsipll(); -} - static inline int prcmu_config_esram0_deep_sleep(u8 state) { return db8500_prcmu_config_esram0_deep_sleep(state); @@ -506,16 +496,6 @@ static inline bool prcmu_is_ac_wake_requested(void) return false; } -static inline int prcmu_disable_dsipll(void) -{ - return 0; -} - -static inline int prcmu_enable_dsipll(void) -{ - return 0; -} - static inline int prcmu_config_esram0_deep_sleep(u8 state) { return 0;