* [U-Boot] [PATCH] usb: lpc32xx: Add i2c DM support
@ 2017-03-14 15:28 Sylvain Lemieux
2017-04-14 14:01 ` Marek Vasut
0 siblings, 1 reply; 4+ messages in thread
From: Sylvain Lemieux @ 2017-03-14 15:28 UTC (permalink / raw)
To: u-boot
From: Liam Beguin <lbeguin@tycoint.com>
Add DM support for i2c functions.
Signed-off-by: Liam Beguin <lbeguin@tycoint.com>
Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
---
Note:
* This patch is require as part of the DM support of the LPC32xx I2C driver.
All I2C drivers should be converted, to DM, by the end of June 2017.
* The USB driver is supporting the DM and non-DM API.
* This patch depend on the following patchset:
https://lists.denx.de/pipermail/u-boot/2017-March/283672.html
drivers/usb/host/ohci-lpc32xx.c | 33 +++++++++++++++++++++++++++++++--
1 file changed, 31 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/host/ohci-lpc32xx.c b/drivers/usb/host/ohci-lpc32xx.c
index 9245126ed6..51be4c90c7 100644
--- a/drivers/usb/host/ohci-lpc32xx.c
+++ b/drivers/usb/host/ohci-lpc32xx.c
@@ -14,8 +14,10 @@
#include <asm/io.h>
#include <asm/arch/cpu.h>
#include <asm/arch/clk.h>
+#include <asm/arch/i2c.h>
#include <usb.h>
#include <i2c.h>
+#include <dm.h>
/* OTG I2C controller module register structures */
struct otgi2c_regs {
@@ -83,12 +85,35 @@ static struct clk_pm_regs *clk_pwr = (struct clk_pm_regs *)CLK_PM_BASE;
static int isp1301_set_value(int reg, u8 value)
{
+#ifndef CONFIG_DM_I2C
return i2c_write(ISP1301_I2C_ADDR, reg, 1, &value, 1);
+#else
+ struct udevice *dev;
+ int ret;
+
+ ret = i2c_get_chip_for_busnum(I2C_2, ISP1301_I2C_ADDR,
+ 1, &dev);
+ if (ret)
+ return ret;
+
+ return dm_i2c_write(dev, reg, &value, 1);
+#endif
}
-static void isp1301_configure(void)
+static int isp1301_configure(void)
{
+#ifndef CONFIG_DM_I2C
i2c_set_bus_num(I2C_2);
+#else
+ int ret;
+ struct udevice *bus;
+
+ ret = uclass_get_device_by_seq(UCLASS_I2C, I2C_2, &bus);
+ if (ret) {
+ debug("%s: No bus %d\n", __func__, I2C_2);
+ return ret;
+ }
+#endif
/*
* LPC32XX only supports DAT_SE0 USB mode
@@ -116,6 +141,8 @@ static void isp1301_configure(void)
/* Enable usb_need_clk clock after transceiver is initialized */
setbits_le32(&clk_pwr->usb_ctrl, CLK_USBCTRL_USBDVND_EN);
+
+ return 0;
}
static int usbpll_setup(void)
@@ -167,7 +194,9 @@ int usb_cpu_init(void)
return ret;
/* Configure ISP1301 */
- isp1301_configure();
+ ret = isp1301_configure();
+ if (ret)
+ return ret;
/* setup USB clocks and PLL */
ret = usbpll_setup();
--
2.11.0
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [U-Boot] [PATCH] usb: lpc32xx: Add i2c DM support
2017-03-14 15:28 [U-Boot] [PATCH] usb: lpc32xx: Add i2c DM support Sylvain Lemieux
@ 2017-04-14 14:01 ` Marek Vasut
2017-04-19 12:24 ` Sylvain Lemieux
0 siblings, 1 reply; 4+ messages in thread
From: Marek Vasut @ 2017-04-14 14:01 UTC (permalink / raw)
To: u-boot
On 03/14/2017 04:28 PM, Sylvain Lemieux wrote:
> From: Liam Beguin <lbeguin@tycoint.com>
>
> Add DM support for i2c functions.
>
> Signed-off-by: Liam Beguin <lbeguin@tycoint.com>
> Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
> ---
> Note:
> * This patch is require as part of the DM support of the LPC32xx I2C driver.
> All I2C drivers should be converted, to DM, by the end of June 2017.
>
> * The USB driver is supporting the DM and non-DM API.
>
> * This patch depend on the following patchset:
> https://lists.denx.de/pipermail/u-boot/2017-March/283672.html
>
> drivers/usb/host/ohci-lpc32xx.c | 33 +++++++++++++++++++++++++++++++--
> 1 file changed, 31 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/usb/host/ohci-lpc32xx.c b/drivers/usb/host/ohci-lpc32xx.c
> index 9245126ed6..51be4c90c7 100644
> --- a/drivers/usb/host/ohci-lpc32xx.c
> +++ b/drivers/usb/host/ohci-lpc32xx.c
> @@ -14,8 +14,10 @@
> #include <asm/io.h>
> #include <asm/arch/cpu.h>
> #include <asm/arch/clk.h>
> +#include <asm/arch/i2c.h>
> #include <usb.h>
> #include <i2c.h>
> +#include <dm.h>
>
> /* OTG I2C controller module register structures */
> struct otgi2c_regs {
> @@ -83,12 +85,35 @@ static struct clk_pm_regs *clk_pwr = (struct clk_pm_regs *)CLK_PM_BASE;
>
> static int isp1301_set_value(int reg, u8 value)
> {
> +#ifndef CONFIG_DM_I2C
> return i2c_write(ISP1301_I2C_ADDR, reg, 1, &value, 1);
> +#else
> + struct udevice *dev;
> + int ret;
> +
> + ret = i2c_get_chip_for_busnum(I2C_2, ISP1301_I2C_ADDR,
> + 1, &dev);
I'd rather see you passing udevice around than requesting it on each
single i2c write.
> + if (ret)
> + return ret;
> +
> + return dm_i2c_write(dev, reg, &value, 1);
> +#endif
> }
>
> -static void isp1301_configure(void)
> +static int isp1301_configure(void)
> {
> +#ifndef CONFIG_DM_I2C
> i2c_set_bus_num(I2C_2);
> +#else
> + int ret;
> + struct udevice *bus;
> +
> + ret = uclass_get_device_by_seq(UCLASS_I2C, I2C_2, &bus);
> + if (ret) {
> + debug("%s: No bus %d\n", __func__, I2C_2);
> + return ret;
> + }
> +#endif
>
> /*
> * LPC32XX only supports DAT_SE0 USB mode
> @@ -116,6 +141,8 @@ static void isp1301_configure(void)
>
> /* Enable usb_need_clk clock after transceiver is initialized */
> setbits_le32(&clk_pwr->usb_ctrl, CLK_USBCTRL_USBDVND_EN);
> +
> + return 0;
> }
>
> static int usbpll_setup(void)
> @@ -167,7 +194,9 @@ int usb_cpu_init(void)
> return ret;
>
> /* Configure ISP1301 */
> - isp1301_configure();
> + ret = isp1301_configure();
> + if (ret)
> + return ret;
Don't we need some sort of failpath now, to undo the changes ?
> /* setup USB clocks and PLL */
> ret = usbpll_setup();
>
--
Best regards,
Marek Vasut
^ permalink raw reply [flat|nested] 4+ messages in thread
* [U-Boot] [PATCH] usb: lpc32xx: Add i2c DM support
2017-04-14 14:01 ` Marek Vasut
@ 2017-04-19 12:24 ` Sylvain Lemieux
2017-04-19 12:41 ` Marek Vasut
0 siblings, 1 reply; 4+ messages in thread
From: Sylvain Lemieux @ 2017-04-19 12:24 UTC (permalink / raw)
To: u-boot
On Fri, 2017-04-14 at 16:01 +0200, Marek Vasut wrote:
> On 03/14/2017 04:28 PM, Sylvain Lemieux wrote:
> > From: Liam Beguin <lbeguin@tycoint.com>
> >
> > Add DM support for i2c functions.
> >
> > Signed-off-by: Liam Beguin <lbeguin@tycoint.com>
> > Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
> > ---
> > Note:
> > * This patch is require as part of the DM support of the LPC32xx I2C driver.
> > All I2C drivers should be converted, to DM, by the end of June 2017.
> >
> > * The USB driver is supporting the DM and non-DM API.
> >
> > * This patch depend on the following patchset:
> > https://lists.denx.de/pipermail/u-boot/2017-March/283672.html
> >
> > drivers/usb/host/ohci-lpc32xx.c | 33 +++++++++++++++++++++++++++++++--
> > 1 file changed, 31 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/usb/host/ohci-lpc32xx.c b/drivers/usb/host/ohci-lpc32xx.c
> > index 9245126ed6..51be4c90c7 100644
> > --- a/drivers/usb/host/ohci-lpc32xx.c
> > +++ b/drivers/usb/host/ohci-lpc32xx.c
> > @@ -14,8 +14,10 @@
> > #include <asm/io.h>
> > #include <asm/arch/cpu.h>
> > #include <asm/arch/clk.h>
> > +#include <asm/arch/i2c.h>
> > #include <usb.h>
> > #include <i2c.h>
> > +#include <dm.h>
> >
> > /* OTG I2C controller module register structures */
> > struct otgi2c_regs {
> > @@ -83,12 +85,35 @@ static struct clk_pm_regs *clk_pwr = (struct clk_pm_regs *)CLK_PM_BASE;
> >
> > static int isp1301_set_value(int reg, u8 value)
> > {
> > +#ifndef CONFIG_DM_I2C
> > return i2c_write(ISP1301_I2C_ADDR, reg, 1, &value, 1);
> > +#else
> > + struct udevice *dev;
> > + int ret;
> > +
> > + ret = i2c_get_chip_for_busnum(I2C_2, ISP1301_I2C_ADDR,
> > + 1, &dev);
>
> I'd rather see you passing udevice around than requesting it on each
> single i2c write.
>
Will do the change and submit a version 2.
> > + if (ret)
> > + return ret;
> > +
> > + return dm_i2c_write(dev, reg, &value, 1);
> > +#endif
> > }
> >
> > -static void isp1301_configure(void)
> > +static int isp1301_configure(void)
> > {
> > +#ifndef CONFIG_DM_I2C
> > i2c_set_bus_num(I2C_2);
> > +#else
> > + int ret;
> > + struct udevice *bus;
> > +
> > + ret = uclass_get_device_by_seq(UCLASS_I2C, I2C_2, &bus);
> > + if (ret) {
> > + debug("%s: No bus %d\n", __func__, I2C_2);
> > + return ret;
> > + }
> > +#endif
> >
> > /*
> > * LPC32XX only supports DAT_SE0 USB mode
> > @@ -116,6 +141,8 @@ static void isp1301_configure(void)
> >
> > /* Enable usb_need_clk clock after transceiver is initialized */
> > setbits_le32(&clk_pwr->usb_ctrl, CLK_USBCTRL_USBDVND_EN);
> > +
> > + return 0;
> > }
> >
> > static int usbpll_setup(void)
> > @@ -167,7 +194,9 @@ int usb_cpu_init(void)
> > return ret;
> >
> > /* Configure ISP1301 */
> > - isp1301_configure();
> > + ret = isp1301_configure();
> > + if (ret)
> > + return ret;
>
> Don't we need some sort of failpath now, to undo the changes ?
>
With the rework of the patch, this change is no longer needed.
> > /* setup USB clocks and PLL */
> > ret = usbpll_setup();
> >
>
>
Sylvain
^ permalink raw reply [flat|nested] 4+ messages in thread
* [U-Boot] [PATCH] usb: lpc32xx: Add i2c DM support
2017-04-19 12:24 ` Sylvain Lemieux
@ 2017-04-19 12:41 ` Marek Vasut
0 siblings, 0 replies; 4+ messages in thread
From: Marek Vasut @ 2017-04-19 12:41 UTC (permalink / raw)
To: u-boot
On 04/19/2017 02:24 PM, Sylvain Lemieux wrote:
> On Fri, 2017-04-14 at 16:01 +0200, Marek Vasut wrote:
>> On 03/14/2017 04:28 PM, Sylvain Lemieux wrote:
>>> From: Liam Beguin <lbeguin@tycoint.com>
>>>
>>> Add DM support for i2c functions.
>>>
>>> Signed-off-by: Liam Beguin <lbeguin@tycoint.com>
>>> Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
>>> ---
>>> Note:
>>> * This patch is require as part of the DM support of the LPC32xx I2C driver.
>>> All I2C drivers should be converted, to DM, by the end of June 2017.
>>>
>>> * The USB driver is supporting the DM and non-DM API.
>>>
>>> * This patch depend on the following patchset:
>>> https://lists.denx.de/pipermail/u-boot/2017-March/283672.html
>>>
>>> drivers/usb/host/ohci-lpc32xx.c | 33 +++++++++++++++++++++++++++++++--
>>> 1 file changed, 31 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/drivers/usb/host/ohci-lpc32xx.c b/drivers/usb/host/ohci-lpc32xx.c
>>> index 9245126ed6..51be4c90c7 100644
>>> --- a/drivers/usb/host/ohci-lpc32xx.c
>>> +++ b/drivers/usb/host/ohci-lpc32xx.c
>>> @@ -14,8 +14,10 @@
>>> #include <asm/io.h>
>>> #include <asm/arch/cpu.h>
>>> #include <asm/arch/clk.h>
>>> +#include <asm/arch/i2c.h>
>>> #include <usb.h>
>>> #include <i2c.h>
>>> +#include <dm.h>
>>>
>>> /* OTG I2C controller module register structures */
>>> struct otgi2c_regs {
>>> @@ -83,12 +85,35 @@ static struct clk_pm_regs *clk_pwr = (struct clk_pm_regs *)CLK_PM_BASE;
>>>
>>> static int isp1301_set_value(int reg, u8 value)
>>> {
>>> +#ifndef CONFIG_DM_I2C
>>> return i2c_write(ISP1301_I2C_ADDR, reg, 1, &value, 1);
>>> +#else
>>> + struct udevice *dev;
>>> + int ret;
>>> +
>>> + ret = i2c_get_chip_for_busnum(I2C_2, ISP1301_I2C_ADDR,
>>> + 1, &dev);
>>
>> I'd rather see you passing udevice around than requesting it on each
>> single i2c write.
>>
> Will do the change and submit a version 2.
>
>>> + if (ret)
>>> + return ret;
>>> +
>>> + return dm_i2c_write(dev, reg, &value, 1);
>>> +#endif
>>> }
>>>
>>> -static void isp1301_configure(void)
>>> +static int isp1301_configure(void)
>>> {
>>> +#ifndef CONFIG_DM_I2C
>>> i2c_set_bus_num(I2C_2);
>>> +#else
>>> + int ret;
>>> + struct udevice *bus;
>>> +
>>> + ret = uclass_get_device_by_seq(UCLASS_I2C, I2C_2, &bus);
>>> + if (ret) {
>>> + debug("%s: No bus %d\n", __func__, I2C_2);
>>> + return ret;
>>> + }
>>> +#endif
>>>
>>> /*
>>> * LPC32XX only supports DAT_SE0 USB mode
>>> @@ -116,6 +141,8 @@ static void isp1301_configure(void)
>>>
>>> /* Enable usb_need_clk clock after transceiver is initialized */
>>> setbits_le32(&clk_pwr->usb_ctrl, CLK_USBCTRL_USBDVND_EN);
>>> +
>>> + return 0;
>>> }
>>>
>>> static int usbpll_setup(void)
>>> @@ -167,7 +194,9 @@ int usb_cpu_init(void)
>>> return ret;
>>>
>>> /* Configure ISP1301 */
>>> - isp1301_configure();
>>> + ret = isp1301_configure();
>>> + if (ret)
>>> + return ret;
>>
>> Don't we need some sort of failpath now, to undo the changes ?
>>
> With the rework of the patch, this change is no longer needed.
>
OK, super
--
Best regards,
Marek Vasut
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2017-04-19 12:41 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-03-14 15:28 [U-Boot] [PATCH] usb: lpc32xx: Add i2c DM support Sylvain Lemieux
2017-04-14 14:01 ` Marek Vasut
2017-04-19 12:24 ` Sylvain Lemieux
2017-04-19 12:41 ` Marek Vasut
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