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Message-Id: <20180424203239.21885-7-krzk@kernel.org>
Date: Tue, 24 Apr 2018 22:32:35 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Kukjin Kim <kgene@...nel.org>,
Krzysztof Kozlowski <krzk@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>, Tejun Heo <tj@...nel.org>,
Sylwester Nawrocki <s.nawrocki@...sung.com>,
Tomasz Figa <tomasz.figa@...il.com>,
Chanwoo Choi <cw00.choi@...sung.com>,
Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>,
"Rafael J. Wysocki" <rjw@...ysocki.net>,
Viresh Kumar <viresh.kumar@...aro.org>,
Zhang Rui <rui.zhang@...el.com>,
Eduardo Valentin <edubezval@...il.com>,
Russell King <linux@...linux.org.uk>,
Hans de Goede <hdegoede@...hat.com>,
Linus Walleij <linus.walleij@...aro.org>,
Andi Shyti <andi@...zian.org>, Mark Brown <broonie@...nel.org>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
Alan Stern <stern@...land.harvard.edu>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
linux-arm-kernel@...ts.infradead.org,
linux-samsung-soc@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org,
linux-clk@...r.kernel.org, linux-pm@...r.kernel.org,
linux-i2c@...r.kernel.org, linux-gpio@...r.kernel.org,
linux-spi@...r.kernel.org, linux-usb@...r.kernel.org
Cc: Marek Szyprowski <m.szyprowski@...sung.com>,
Arnd Bergmann <arnd@...db.de>, Olof Johansson <olof@...om.net>,
Jaehoon Chung <jh80.chung@...sung.com>
Subject: [RFC 06/10] 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 <krzk@...nel.org>
---
.../devicetree/bindings/thermal/exynos-thermal.txt | 14 +-
drivers/thermal/samsung/exynos_tmu.c | 155 +--------------------
drivers/thermal/samsung/exynos_tmu.h | 1 -
3 files changed, 4 insertions(+), 166 deletions(-)
diff --git a/Documentation/devicetree/bindings/thermal/exynos-thermal.txt b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt
index b957acff57aa..ad648d93d961 100644
--- a/Documentation/devicetree/bindings/thermal/exynos-thermal.txt
+++ b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt
@@ -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@...118 {
- 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@...68000 {
compatible = "samsung,exynos5420-tmu-ext-triminfo";
reg = <0x10068000 0x100>, <0x1006c000 0x4>;
diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index ed805c7c5ace..f92f470bce21 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -123,28 +123,6 @@
#define EXYNOS5433_PD_DET_EN 1
-/*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
@@ -614,57 +592,6 @@ static int exynos5433_tmu_initialize(struct platform_device *pdev)
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);
@@ -816,35 +743,6 @@ static void exynos5433_tmu_control(struct platform_device *pdev, bool on)
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);
@@ -911,10 +809,8 @@ static u32 get_emul_con_reg(struct exynos_tmu_data *data, unsigned int val,
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);
@@ -955,16 +851,6 @@ static void exynos4412_tmu_set_emulation(struct exynos_tmu_data *data,
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;
@@ -987,7 +873,6 @@ static int exynos_tmu_set_emulation(void *drv_data, int temp)
}
#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 */
@@ -1005,11 +890,6 @@ static int exynos4412_tmu_read(struct exynos_tmu_data *data)
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) &
@@ -1020,16 +900,9 @@ static void exynos_tmu_work(struct 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);
@@ -1042,7 +915,6 @@ static void exynos_tmu_work(struct work_struct *work)
clk_disable(data->clk);
mutex_unlock(&data->lock);
-out:
enable_irq(data->irq);
}
@@ -1077,15 +949,6 @@ static void exynos4210_tmu_clear_irqs(struct exynos_tmu_data *data)
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;
@@ -1105,7 +968,6 @@ static const struct of_device_id exynos_tmu_match[] = {
{ .compatible = "samsung,exynos5420-tmu", },
{ .compatible = "samsung,exynos5420-tmu-ext-triminfo", },
{ .compatible = "samsung,exynos5433-tmu", },
- { .compatible = "samsung,exynos5440-tmu", },
{ .compatible = "samsung,exynos7-tmu", },
{ /* sentinel */ },
};
@@ -1130,8 +992,6 @@ static int exynos_of_get_soc_type(struct device_node *np)
return SOC_ARCH_EXYNOS5420_TRIMINFO;
else if (of_device_is_compatible(np, "samsung,exynos5433-tmu"))
return SOC_ARCH_EXYNOS5433;
- else if (of_device_is_compatible(np, "samsung,exynos5440-tmu"))
- return SOC_ARCH_EXYNOS5440;
else if (of_device_is_compatible(np, "samsung,exynos7-tmu"))
return SOC_ARCH_EXYNOS7;
@@ -1242,14 +1102,6 @@ static int exynos_map_dt_data(struct platform_device *pdev)
data->tmu_clear_irqs = exynos4210_tmu_clear_irqs;
data->ntrip = 8;
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;
- break;
case SOC_ARCH_EXYNOS7:
data->tmu_initialize = exynos7_tmu_initialize;
data->tmu_control = exynos7_tmu_control;
@@ -1267,8 +1119,7 @@ static int exynos_map_dt_data(struct platform_device *pdev)
* 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)) {
diff --git a/drivers/thermal/samsung/exynos_tmu.h b/drivers/thermal/samsung/exynos_tmu.h
index 5149c2a3030c..f3f830edd79a 100644
--- a/drivers/thermal/samsung/exynos_tmu.h
+++ b/drivers/thermal/samsung/exynos_tmu.h
@@ -34,7 +34,6 @@ enum soc_type {
SOC_ARCH_EXYNOS5420,
SOC_ARCH_EXYNOS5420_TRIMINFO,
SOC_ARCH_EXYNOS5433,
- SOC_ARCH_EXYNOS5440,
SOC_ARCH_EXYNOS7,
};
--
2.14.1
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