Re: [PATCH 2/3] thermal: samsung: change base_common to more meaningful base_second

amit daniel kachhap
2013-09-06T04:38:49Z

On Wed, Sep 4, 2013 at 9:53 AM, Naveen Krishna Chatradhi
<ch.naveen@samsung.com> wrote:
> On Exynos5440 and Exynos5420 there are registers common
> across the TMU channels.
>
> To support that, we introduced a ADDRESS_MULTIPLE flag in the
> driver and the 2nd set of register base and size are provided
> in the "reg" property of the node.
>
> As per Amit's suggestion, this patch changes the base_common
> to base_second and SHARED_MEMORY to ADDRESS_MULTIPLE.
>
> Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
The changes look good. For all the 3 patches in the series,

Acked-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Reviewed-by: Amit Daniel Kachhap<amit.daniel@samsung.com>

Thanks,
Amit Daniel
> ---
> Changes since v2:
> Changed the flag name from SHARED_MEMORY to ADDRESS_MULTIPLE.
> https://lkml.org/lkml/2013/8/1/38
>
> .../devicetree/bindings/thermal/exynos-thermal.txt | 4 ++--
> drivers/thermal/samsung/exynos_tmu.c | 12 ++++++------
> drivers/thermal/samsung/exynos_tmu.h | 4 ++--
> drivers/thermal/samsung/exynos_tmu_data.c | 2 +-
> 4 files changed, 11 insertions(+), 11 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/thermal/exynos-thermal.txt b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt
> index 284f530..116cca0 100644
> --- a/Documentation/devicetree/bindings/thermal/exynos-thermal.txt
> +++ b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt
> @@ -11,8 +11,8 @@
> - reg : Address range of the thermal registers. For soc's which has multiple
> instances of TMU and some registers are shared across all TMU's like
> interrupt related then 2 set of register has to supplied. First set
> - belongs to each instance of TMU and second set belongs to common TMU
> - registers.
> + belongs to each instance of TMU and second set belongs to second set
> + of common TMU registers.
> - interrupts : Should contain interrupt for thermal system
> - clocks : The main clock for TMU device
> - clock-names : Thermal system clock name
> diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
> index d201ed8..3a55caf 100644
> --- a/drivers/thermal/samsung/exynos_tmu.c
> +++ b/drivers/thermal/samsung/exynos_tmu.c
> @@ -41,7 +41,7 @@
> * @id: identifier of the one instance of the TMU controller.
> * @pdata: pointer to the tmu platform/configuration data
> * @base: base address of the single instance of the TMU controller.
> - * @base_common: base address of the common registers of the TMU controller.
> + * @base_second: base address of the common registers of the TMU controller.
> * @irq: irq number of the TMU controller.
> * @soc: id of the SOC type.
> * @irq_work: pointer to the irq work structure.
> @@ -56,7 +56,7 @@ struct exynos_tmu_data {
> int id;
> struct exynos_tmu_platform_data *pdata;
> void __iomem *base;
> - void __iomem *base_common;
> + void __iomem *base_second;
> int irq;
> enum soc_type soc;
> struct work_struct irq_work;
> @@ -297,7 +297,7 @@ skip_calib_data:
> }
> /*Clear the PMIN in the common TMU register*/
> if (reg->tmu_pmin && !data->id)
> - writel(0, data->base_common + reg->tmu_pmin);
> + writel(0, data->base_second + reg->tmu_pmin);
> out:
> clk_disable(data->clk);
> mutex_unlock(&data->lock);
> @@ -451,7 +451,7 @@ static void exynos_tmu_work(struct work_struct *work)
>
> /* Find which sensor generated this interrupt */
> if (reg->tmu_irqstatus) {
> - val_type = readl(data->base_common + reg->tmu_irqstatus);
> + val_type = readl(data->base_second + reg->tmu_irqstatus);
> if (!((val_type >> data->id) & 0x1))
> goto out;
> }
> @@ -582,7 +582,7 @@ 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 (!TMU_SUPPORTS(pdata, SHARED_MEMORY))
> + if (!TMU_SUPPORTS(pdata, ADDRESS_MULTIPLE))
> return 0;
>
> if (of_address_to_resource(pdev->dev.of_node, 1, &res)) {
> @@ -590,7 +590,7 @@ static int exynos_map_dt_data(struct platform_device *pdev)
> return -ENODEV;
> }
>
> - data->base_common = devm_ioremap(&pdev->dev, res.start,
> + data->base_second = devm_ioremap(&pdev->dev, res.start,
> resource_size(&res));
> if (!data->base) {
> dev_err(&pdev->dev, "Failed to ioremap memory\n");
> diff --git a/drivers/thermal/samsung/exynos_tmu.h b/drivers/thermal/samsung/exynos_tmu.h
> index 7c6c34a..ebd2ec1 100644
> --- a/drivers/thermal/samsung/exynos_tmu.h
> +++ b/drivers/thermal/samsung/exynos_tmu.h
> @@ -59,7 +59,7 @@ enum soc_type {
> * state(active/idle) can be checked.
> * TMU_SUPPORT_EMUL_TIME - This features allows to set next temp emulation
> * sample time.
> - * TMU_SUPPORT_SHARED_MEMORY - This feature tells that the different TMU
> + * TMU_SUPPORT_ADDRESS_MULTIPLE - This feature tells that the different TMU
> * sensors shares some common registers.
> * TMU_SUPPORT - macro to compare the above features with the supplied.
> */
> @@ -69,7 +69,7 @@ enum soc_type {
> #define TMU_SUPPORT_FALLING_TRIP BIT(3)
> #define TMU_SUPPORT_READY_STATUS BIT(4)
> #define TMU_SUPPORT_EMUL_TIME BIT(5)
> -#define TMU_SUPPORT_SHARED_MEMORY BIT(6)
> +#define TMU_SUPPORT_ADDRESS_MULTIPLE BIT(6)
>
> #define TMU_SUPPORTS(a, b) (a->features & TMU_SUPPORT_ ## b)
>
> diff --git a/drivers/thermal/samsung/exynos_tmu_data.c b/drivers/thermal/samsung/exynos_tmu_data.c
> index 23fea23..58570d0 100644
> --- a/drivers/thermal/samsung/exynos_tmu_data.c
> +++ b/drivers/thermal/samsung/exynos_tmu_data.c
> @@ -239,7 +239,7 @@ static const struct exynos_tmu_registers exynos5440_tmu_registers = {
> .type = SOC_ARCH_EXYNOS5440, \
> .registers = &exynos5440_tmu_registers, \
> .features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_FALLING_TRIP | \
> - TMU_SUPPORT_MULTI_INST | TMU_SUPPORT_SHARED_MEMORY),
> + TMU_SUPPORT_MULTI_INST | TMU_SUPPORT_ADDRESS_MULTIPLE),
>
> struct exynos_tmu_init_data const exynos5440_default_tmu_data = {
> .tmu_data = {
> --
> 1.7.9.5
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-pm" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html