Re: [PATCH RESEND 1/4] clk: clk-s2mps11: Refactor for includingsupport for other MFD clocks
From: Tushar Behera
Date: Sun Dec 29 2013 - 23:03:57 EST
On 30 December 2013 03:47, Mike Turquette <mturquette@xxxxxxxxxx> wrote:
> Quoting Tushar Behera (2013-12-26 02:18:58)
>> The clocks in S2MPS11 and S5M8767 are managed in the same way, baring
>> a difference in the register offset. It would be better to update
>> existing S2MPS11 driver to support the clocks in S5M8767, rather than
>> creating an almost duplicate driver altogether.
>
> Can you rebase patches #1 & #2 onto clk-next? They do not apply cleanly
> as-is.
>
> Regards,
> Mike
>
Commit 1b1ccee1e821 "mfd: s2mps11: Fix build after regmap field rename
in sec-core.c" is also touching this file, which is in Mark's tree
right now. If I rebase
this patch on top clk-next, I am getting conflicts when I merge that
with linux-next.
Let me know how you want to handle this.
I am attaching the rebased patches for your reference.
If you want, I will send them again through git-send-email.
--
Tushar Behera
From f4f730d4bea3848d21e487aa08ff019c588e6ecd Mon Sep 17 00:00:00 2001
From: Tushar Behera <tushar.behera@xxxxxxxxxx>
Date: Wed, 30 Oct 2013 15:55:44 +0530
Subject: [PATCH 1/4] clk: clk-s2mps11: Refactor for including support for
other MFD clocks
The clocks in S2MPS11 and S5M8767 are managed in the same way, baring
a difference in the register offset. It would be better to update
existing S2MPS11 driver to support the clocks in S5M8767, rather than
to create an almost duplicate driver altogether.
Signed-off-by: Tushar Behera <tushar.behera@xxxxxxxxxx>
Reviewed-by: Tomasz Figa <t.figa@xxxxxxxxxxx>
---
drivers/clk/clk-s2mps11.c | 20 ++++++++++++++++----
1 file changed, 16 insertions(+), 4 deletions(-)
diff --git a/drivers/clk/clk-s2mps11.c b/drivers/clk/clk-s2mps11.c
index 7be41e6..494d1df 100644
--- a/drivers/clk/clk-s2mps11.c
+++ b/drivers/clk/clk-s2mps11.c
@@ -48,6 +48,7 @@ struct s2mps11_clk {
struct clk_lookup *lookup;
u32 mask;
bool enabled;
+ unsigned int reg;
};
static struct s2mps11_clk *to_s2mps11_clk(struct clk_hw *hw)
@@ -61,7 +62,7 @@ static int s2mps11_clk_prepare(struct clk_hw *hw)
int ret;
ret = regmap_update_bits(s2mps11->iodev->regmap,
- S2MPS11_REG_RTC_CTRL,
+ s2mps11->reg,
s2mps11->mask, s2mps11->mask);
if (!ret)
s2mps11->enabled = true;
@@ -74,7 +75,7 @@ static void s2mps11_clk_unprepare(struct clk_hw *hw)
struct s2mps11_clk *s2mps11 = to_s2mps11_clk(hw);
int ret;
- ret = regmap_update_bits(s2mps11->iodev->regmap, S2MPS11_REG_RTC_CTRL,
+ ret = regmap_update_bits(s2mps11->iodev->regmap, s2mps11->reg,
s2mps11->mask, ~s2mps11->mask);
if (!ret)
@@ -155,6 +156,7 @@ static int s2mps11_clk_probe(struct platform_device *pdev)
struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
struct s2mps11_clk *s2mps11_clks, *s2mps11_clk;
struct device_node *clk_np = NULL;
+ unsigned int s2mps11_reg;
int i, ret = 0;
u32 val;
@@ -169,13 +171,23 @@ static int s2mps11_clk_probe(struct platform_device *pdev)
if (IS_ERR(clk_np))
return PTR_ERR(clk_np);
+ switch(platform_get_device_id(pdev)->driver_data) {
+ case S2MPS11X:
+ s2mps11_reg = S2MPS11_REG_RTC_CTRL;
+ break;
+ default:
+ dev_err(&pdev->dev, "Invalid device type\n");
+ return -EINVAL;
+ };
+
for (i = 0; i < S2MPS11_CLKS_NUM; i++, s2mps11_clk++) {
s2mps11_clk->iodev = iodev;
s2mps11_clk->hw.init = &s2mps11_clks_init[i];
s2mps11_clk->mask = 1 << i;
+ s2mps11_clk->reg = s2mps11_reg;
ret = regmap_read(s2mps11_clk->iodev->regmap,
- S2MPS11_REG_RTC_CTRL, &val);
+ s2mps11_clk->reg, &val);
if (ret < 0)
goto err_reg;
@@ -241,7 +253,7 @@ static int s2mps11_clk_remove(struct platform_device *pdev)
}
static const struct platform_device_id s2mps11_clk_id[] = {
- { "s2mps11-clk", 0},
+ { "s2mps11-clk", S2MPS11X},
{ },
};
MODULE_DEVICE_TABLE(platform, s2mps11_clk_id);
--
1.7.9.5
From 5f3843da7bc71d126c0cce7a8e88aab1850c4b9c Mon Sep 17 00:00:00 2001
From: Tushar Behera <tushar.behera@xxxxxxxxxx>
Date: Wed, 30 Oct 2013 15:56:27 +0530
Subject: [PATCH 2/4] clk: clk-s2mps11: Add support for clocks in S5M8767 MFD
Since clock operation within S2MPS11 and S5M8767 are similar, we can
support both the devices within a single driver.
Signed-off-by: Tushar Behera <tushar.behera@xxxxxxxxxx>
Reviewed-by: Tomasz Figa <t.figa@xxxxxxxxxxx>
---
drivers/clk/Kconfig | 6 ++++--
drivers/clk/clk-s2mps11.c | 5 +++++
2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index 407cffb..99332da 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -65,10 +65,12 @@ config COMMON_CLK_SI570
clock generators.
config COMMON_CLK_S2MPS11
- tristate "Clock driver for S2MPS11 MFD"
+ tristate "Clock driver for S2MPS11/S5M8767 MFD"
depends on MFD_SEC_CORE
---help---
- This driver supports S2MPS11 crystal oscillator clock.
+ This driver supports S2MPS11/S5M8767 crystal oscillator clock. These
+ multi-function devices have 3 fixed-rate oscillators, clocked at
+ 32KHz each.
config CLK_TWL6040
tristate "External McPDM functional clock from twl6040"
diff --git a/drivers/clk/clk-s2mps11.c b/drivers/clk/clk-s2mps11.c
index 494d1df..37e7285 100644
--- a/drivers/clk/clk-s2mps11.c
+++ b/drivers/clk/clk-s2mps11.c
@@ -27,6 +27,7 @@
#include <linux/clk-provider.h>
#include <linux/platform_device.h>
#include <linux/mfd/samsung/s2mps11.h>
+#include <linux/mfd/samsung/s5m8767.h>
#include <linux/mfd/samsung/core.h>
#define s2mps11_name(a) (a->hw.init->name)
@@ -175,6 +176,9 @@ static int s2mps11_clk_probe(struct platform_device *pdev)
case S2MPS11X:
s2mps11_reg = S2MPS11_REG_RTC_CTRL;
break;
+ case S5M8767X:
+ s2mps11_reg = S5M8767_REG_CTRL1;
+ break;
default:
dev_err(&pdev->dev, "Invalid device type\n");
return -EINVAL;
@@ -254,6 +258,7 @@ static int s2mps11_clk_remove(struct platform_device *pdev)
static const struct platform_device_id s2mps11_clk_id[] = {
{ "s2mps11-clk", S2MPS11X},
+ { "s5m8767-clk", S5M8767X},
{ },
};
MODULE_DEVICE_TABLE(platform, s2mps11_clk_id);
--
1.7.9.5