From: Krzysztof Kozlowski <k...@kernel.org> Subject: [PATCH] thermal: samsung: Remove support for Exynos5440
The Exynos5440 is not actively developed, there are no development boards available and probably there are no real products with it. Remove wide-tree support for Exynos5440. Signed-off-by: Krzysztof Kozlowski <k...@kernel.org> [b.zolnierkie: ported over driver changes] Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnier...@samsung.com> --- Eduardo, here is a version which applies on top of pending Exynos thermal changes (https://lkml.org/lkml/2018/4/16/256). Documentation/devicetree/bindings/thermal/exynos-thermal.txt | 14 drivers/thermal/samsung/exynos_tmu.c | 161 ----------- 2 files changed, 4 insertions(+), 171 deletions(-) Index: b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt =================================================================== --- a/Documentation/devicetree/bindings/thermal/exynos-thermal.txt 2018-04-26 12:29:42.716294204 +0200 +++ b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt 2018-04-26 12:29:42.716294204 +0200 @@ -12,7 +12,6 @@ "samsung,exynos5420-tmu-ext-triminfo" for TMU channels 2, 3 and 4 Exynos5420 (Must pass triminfo base and triminfo clock) "samsung,exynos5433-tmu" - "samsung,exynos5440-tmu" "samsung,exynos7-tmu" - interrupt-parent : The phandle for the interrupt controller - reg : Address range of the thermal registers. For soc's which has multiple @@ -68,18 +67,7 @@ Example 1): #thermal-sensor-cells = <0>; }; -Example 2): - - tmuctrl_0: tmuctrl@160118 { - compatible = "samsung,exynos5440-tmu"; - reg = <0x160118 0x230>, <0x160368 0x10>; - interrupts = <0 58 0>; - clocks = <&clock 21>; - clock-names = "tmu_apbif"; - #thermal-sensor-cells = <0>; - }; - -Example 3): (In case of Exynos5420 "with misplaced TRIMINFO register") +Example 2): (In case of Exynos5420 "with misplaced TRIMINFO register") tmu_cpu2: tmu@10068000 { compatible = "samsung,exynos5420-tmu-ext-triminfo"; reg = <0x10068000 0x100>, <0x1006c000 0x4>; Index: b/drivers/thermal/samsung/exynos_tmu.c =================================================================== --- a/drivers/thermal/samsung/exynos_tmu.c 2018-04-26 12:29:42.716294204 +0200 +++ b/drivers/thermal/samsung/exynos_tmu.c 2018-04-26 12:30:52.648295965 +0200 @@ -126,28 +126,6 @@ #define EXYNOS5433_G3D_BASE 0x10070000 -/*exynos5440 specific registers*/ -#define EXYNOS5440_TMU_S0_7_TRIM 0x000 -#define EXYNOS5440_TMU_S0_7_CTRL 0x020 -#define EXYNOS5440_TMU_S0_7_DEBUG 0x040 -#define EXYNOS5440_TMU_S0_7_TEMP 0x0f0 -#define EXYNOS5440_TMU_S0_7_TH0 0x110 -#define EXYNOS5440_TMU_S0_7_TH1 0x130 -#define EXYNOS5440_TMU_S0_7_TH2 0x150 -#define EXYNOS5440_TMU_S0_7_IRQEN 0x210 -#define EXYNOS5440_TMU_S0_7_IRQ 0x230 -/* exynos5440 common registers */ -#define EXYNOS5440_TMU_IRQ_STATUS 0x000 -#define EXYNOS5440_TMU_PMIN 0x004 - -#define EXYNOS5440_TMU_INTEN_RISE0_SHIFT 0 -#define EXYNOS5440_TMU_INTEN_RISE1_SHIFT 1 -#define EXYNOS5440_TMU_INTEN_RISE2_SHIFT 2 -#define EXYNOS5440_TMU_INTEN_RISE3_SHIFT 3 -#define EXYNOS5440_TMU_INTEN_FALL0_SHIFT 4 -#define EXYNOS5440_TMU_TH_RISE4_SHIFT 24 -#define EXYNOS5440_EFUSE_SWAP_OFFSET 8 - /* Exynos7 specific registers */ #define EXYNOS7_THD_TEMP_RISE7_6 0x50 #define EXYNOS7_THD_TEMP_FALL7_6 0x60 @@ -184,7 +162,6 @@ enum soc_type { SOC_ARCH_EXYNOS5420, SOC_ARCH_EXYNOS5420_TRIMINFO, SOC_ARCH_EXYNOS5433, - SOC_ARCH_EXYNOS5440, SOC_ARCH_EXYNOS7, }; @@ -619,57 +596,6 @@ out: return ret; } -static int exynos5440_tmu_initialize(struct platform_device *pdev) -{ - struct exynos_tmu_data *data = platform_get_drvdata(pdev); - unsigned int trim_info = 0, con, rising_threshold; - int threshold_code; - int crit_temp = 0; - - /* - * For exynos5440 soc triminfo value is swapped between TMU0 and - * TMU2, so the below logic is needed. - */ - switch (data->id) { - case 0: - trim_info = readl(data->base + EXYNOS5440_EFUSE_SWAP_OFFSET + - EXYNOS5440_TMU_S0_7_TRIM); - break; - case 1: - trim_info = readl(data->base + EXYNOS5440_TMU_S0_7_TRIM); - break; - case 2: - trim_info = readl(data->base - EXYNOS5440_EFUSE_SWAP_OFFSET + - EXYNOS5440_TMU_S0_7_TRIM); - } - sanitize_temp_error(data, trim_info); - - /* Write temperature code for rising and falling threshold */ - rising_threshold = readl(data->base + EXYNOS5440_TMU_S0_7_TH0); - rising_threshold = get_th_reg(data, rising_threshold, false); - writel(rising_threshold, data->base + EXYNOS5440_TMU_S0_7_TH0); - writel(0, data->base + EXYNOS5440_TMU_S0_7_TH1); - - data->tmu_clear_irqs(data); - - /* if last threshold limit is also present */ - if (!data->tzd->ops->get_crit_temp(data->tzd, &crit_temp)) { - threshold_code = temp_to_code(data, crit_temp / MCELSIUS); - /* 5th level to be assigned in th2 reg */ - rising_threshold = - threshold_code << EXYNOS5440_TMU_TH_RISE4_SHIFT; - writel(rising_threshold, data->base + EXYNOS5440_TMU_S0_7_TH2); - con = readl(data->base + EXYNOS5440_TMU_S0_7_CTRL); - con |= (1 << EXYNOS_TMU_THERM_TRIP_EN_SHIFT); - writel(con, data->base + EXYNOS5440_TMU_S0_7_CTRL); - } - /* Clear the PMIN in the common TMU register */ - if (!data->id) - writel(0, data->base_second + EXYNOS5440_TMU_PMIN); - - return 0; -} - static int exynos7_tmu_initialize(struct platform_device *pdev) { struct exynos_tmu_data *data = platform_get_drvdata(pdev); @@ -820,35 +746,6 @@ static void exynos5433_tmu_control(struc writel(con, data->base + EXYNOS_TMU_REG_CONTROL); } -static void exynos5440_tmu_control(struct platform_device *pdev, bool on) -{ - struct exynos_tmu_data *data = platform_get_drvdata(pdev); - struct thermal_zone_device *tz = data->tzd; - unsigned int con, interrupt_en; - - con = get_con_reg(data, readl(data->base + EXYNOS5440_TMU_S0_7_CTRL)); - - if (on) { - con |= (1 << EXYNOS_TMU_CORE_EN_SHIFT); - interrupt_en = - (of_thermal_is_trip_valid(tz, 3) - << EXYNOS5440_TMU_INTEN_RISE3_SHIFT) | - (of_thermal_is_trip_valid(tz, 2) - << EXYNOS5440_TMU_INTEN_RISE2_SHIFT) | - (of_thermal_is_trip_valid(tz, 1) - << EXYNOS5440_TMU_INTEN_RISE1_SHIFT) | - (of_thermal_is_trip_valid(tz, 0) - << EXYNOS5440_TMU_INTEN_RISE0_SHIFT); - interrupt_en |= - interrupt_en << EXYNOS5440_TMU_INTEN_FALL0_SHIFT; - } else { - con &= ~(1 << EXYNOS_TMU_CORE_EN_SHIFT); - interrupt_en = 0; /* Disable all interrupts */ - } - writel(interrupt_en, data->base + EXYNOS5440_TMU_S0_7_IRQEN); - writel(con, data->base + EXYNOS5440_TMU_S0_7_CTRL); -} - static void exynos7_tmu_control(struct platform_device *pdev, bool on) { struct exynos_tmu_data *data = platform_get_drvdata(pdev); @@ -920,10 +817,8 @@ static u32 get_emul_con_reg(struct exyno if (temp) { temp /= MCELSIUS; - if (data->soc != SOC_ARCH_EXYNOS5440) { - val &= ~(EXYNOS_EMUL_TIME_MASK << EXYNOS_EMUL_TIME_SHIFT); - val |= (EXYNOS_EMUL_TIME << EXYNOS_EMUL_TIME_SHIFT); - } + val &= ~(EXYNOS_EMUL_TIME_MASK << EXYNOS_EMUL_TIME_SHIFT); + val |= (EXYNOS_EMUL_TIME << EXYNOS_EMUL_TIME_SHIFT); if (data->soc == SOC_ARCH_EXYNOS7) { val &= ~(EXYNOS7_EMUL_DATA_MASK << EXYNOS7_EMUL_DATA_SHIFT); @@ -964,16 +859,6 @@ static void exynos4412_tmu_set_emulation writel(val, data->base + emul_con); } -static void exynos5440_tmu_set_emulation(struct exynos_tmu_data *data, - int temp) -{ - unsigned int val; - - val = readl(data->base + EXYNOS5440_TMU_S0_7_DEBUG); - val = get_emul_con_reg(data, val, temp); - writel(val, data->base + EXYNOS5440_TMU_S0_7_DEBUG); -} - static int exynos_tmu_set_emulation(void *drv_data, int temp) { struct exynos_tmu_data *data = drv_data; @@ -996,7 +881,6 @@ out: } #else #define exynos4412_tmu_set_emulation NULL -#define exynos5440_tmu_set_emulation NULL static int exynos_tmu_set_emulation(void *drv_data, int temp) { return -EINVAL; } #endif /* CONFIG_THERMAL_EMULATION */ @@ -1014,11 +898,6 @@ static int exynos4412_tmu_read(struct ex return readb(data->base + EXYNOS_TMU_REG_CURRENT_TEMP); } -static int exynos5440_tmu_read(struct exynos_tmu_data *data) -{ - return readb(data->base + EXYNOS5440_TMU_S0_7_TEMP); -} - static int exynos7_tmu_read(struct exynos_tmu_data *data) { return readw(data->base + EXYNOS_TMU_REG_CURRENT_TEMP) & @@ -1029,16 +908,9 @@ static void exynos_tmu_work(struct work_ { struct exynos_tmu_data *data = container_of(work, struct exynos_tmu_data, irq_work); - unsigned int val_type; if (!IS_ERR(data->clk_sec)) clk_enable(data->clk_sec); - /* Find which sensor generated this interrupt */ - if (data->soc == SOC_ARCH_EXYNOS5440) { - val_type = readl(data->base_second + EXYNOS5440_TMU_IRQ_STATUS); - if (!((val_type >> data->id) & 0x1)) - goto out; - } if (!IS_ERR(data->clk_sec)) clk_disable(data->clk_sec); @@ -1051,7 +923,6 @@ static void exynos_tmu_work(struct work_ clk_disable(data->clk); mutex_unlock(&data->lock); -out: enable_irq(data->irq); } @@ -1086,15 +957,6 @@ static void exynos4210_tmu_clear_irqs(st writel(val_irq, data->base + tmu_intclear); } -static void exynos5440_tmu_clear_irqs(struct exynos_tmu_data *data) -{ - unsigned int val_irq; - - val_irq = readl(data->base + EXYNOS5440_TMU_S0_7_IRQ); - /* clear the interrupts */ - writel(val_irq, data->base + EXYNOS5440_TMU_S0_7_IRQ); -} - static irqreturn_t exynos_tmu_irq(int irq, void *id) { struct exynos_tmu_data *data = id; @@ -1131,9 +993,6 @@ static const struct of_device_id exynos_ .compatible = "samsung,exynos5433-tmu", .data = (const void *)SOC_ARCH_EXYNOS5433, }, { - .compatible = "samsung,exynos5440-tmu", - .data = (const void *)SOC_ARCH_EXYNOS5440, - }, { .compatible = "samsung,exynos7-tmu", .data = (const void *)SOC_ARCH_EXYNOS7, }, @@ -1223,19 +1082,6 @@ static int exynos_map_dt_data(struct pla data->min_efuse_value = 40; data->max_efuse_value = 150; break; - case SOC_ARCH_EXYNOS5440: - data->tmu_initialize = exynos5440_tmu_initialize; - data->tmu_control = exynos5440_tmu_control; - data->tmu_read = exynos5440_tmu_read; - data->tmu_set_emulation = exynos5440_tmu_set_emulation; - data->tmu_clear_irqs = exynos5440_tmu_clear_irqs; - data->ntrip = 4; - data->gain = 5; - data->reference_voltage = 16; - data->efuse_value = 0x5d2d; - data->min_efuse_value = 16; - data->max_efuse_value = 76; - break; case SOC_ARCH_EXYNOS7: data->tmu_initialize = exynos7_tmu_initialize; data->tmu_control = exynos7_tmu_control; @@ -1260,8 +1106,7 @@ static int exynos_map_dt_data(struct pla * Check if the TMU shares some registers and then try to map the * memory of common registers. */ - if (data->soc != SOC_ARCH_EXYNOS5420_TRIMINFO && - data->soc != SOC_ARCH_EXYNOS5440) + if (data->soc != SOC_ARCH_EXYNOS5420_TRIMINFO) return 0; if (of_address_to_resource(pdev->dev.of_node, 1, &res)) {
