2020-06-16 08:29:30

by Jisheng Zhang

Subject: [PATCH] usb: dwc2: use well defined macros for power_down

Use the well defined macros such as DWC2_POWER_DOWN_PARAM_NONE,
DWC2_POWER_DOWN_PARAM_PARTIAL and DWC2_POWER_DOWN_PARAM_HIBERNATION
to make code more readable.

Signed-off-by: Jisheng Zhang <[email protected]>
---
drivers/usb/dwc2/hcd.c | 4 ++--
drivers/usb/dwc2/params.c | 12 ++++++------
2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index b90f858af960..e9ac215b9663 100644
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -3628,7 +3628,7 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq,
"SetPortFeature - USB_PORT_FEAT_SUSPEND\n");
if (windex != hsotg->otg_port)
goto error;
- if (hsotg->params.power_down == 2)
+ if (hsotg->params.power_down == DWC2_POWER_DOWN_PARAM_HIBERNATION)
dwc2_enter_hibernation(hsotg, 1);
else
dwc2_port_suspend(hsotg, windex);
@@ -3646,7 +3646,7 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq,
break;

case USB_PORT_FEAT_RESET:
- if (hsotg->params.power_down == 2 &&
+ if (hsotg->params.power_down == DWC2_POWER_DOWN_PARAM_HIBERNATION &&
hsotg->hibernated)
dwc2_exit_hibernation(hsotg, 0, 1, 1);
hprt0 = dwc2_read_hprt0(hsotg);
diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c
index ce736d67c7c3..8f9d061c4d5f 100644
--- a/drivers/usb/dwc2/params.c
+++ b/drivers/usb/dwc2/params.c
@@ -68,14 +68,14 @@ static void dwc2_set_his_params(struct dwc2_hsotg *hsotg)
p->ahbcfg = GAHBCFG_HBSTLEN_INCR16 <<
GAHBCFG_HBSTLEN_SHIFT;
p->change_speed_quirk = true;
- p->power_down = false;
+ p->power_down = DWC2_POWER_DOWN_PARAM_NONE;
}

static void dwc2_set_s3c6400_params(struct dwc2_hsotg *hsotg)
{
struct dwc2_core_params *p = &hsotg->params;

- p->power_down = 0;
+ p->power_down = DWC2_POWER_DOWN_PARAM_NONE;
p->phy_utmi_width = 8;
}

@@ -89,7 +89,7 @@ static void dwc2_set_rk_params(struct dwc2_hsotg *hsotg)
p->host_perio_tx_fifo_size = 256;
p->ahbcfg = GAHBCFG_HBSTLEN_INCR16 <<
GAHBCFG_HBSTLEN_SHIFT;
- p->power_down = 0;
+ p->power_down = DWC2_POWER_DOWN_PARAM_NONE;
}

static void dwc2_set_ltq_params(struct dwc2_hsotg *hsotg)
@@ -319,11 +319,11 @@ static void dwc2_set_param_power_down(struct dwc2_hsotg *hsotg)
int val;

if (hsotg->hw_params.hibernation)
- val = 2;
+ val = DWC2_POWER_DOWN_PARAM_HIBERNATION;
else if (hsotg->hw_params.power_optimized)
- val = 1;
+ val = DWC2_POWER_DOWN_PARAM_PARTIAL;
else
- val = 0;
+ val = DWC2_POWER_DOWN_PARAM_NONE;

hsotg->params.power_down = val;
}
--
2.27.0

2020-06-16 13:52:02

by Minas Harutyunyan

Subject: Re: [PATCH] usb: dwc2: use well defined macros for power_down

Hi,

On 6/16/2020 12:26 PM, Jisheng Zhang wrote:
> Use the well defined macros such as DWC2_POWER_DOWN_PARAM_NONE,
> DWC2_POWER_DOWN_PARAM_PARTIAL and DWC2_POWER_DOWN_PARAM_HIBERNATION
> to make code more readable.
>
> Signed-off-by: Jisheng Zhang <[email protected]>

Acked-by: Minas Harutyunyan <[email protected]>

> ---
> drivers/usb/dwc2/hcd.c | 4 ++--
> drivers/usb/dwc2/params.c | 12 ++++++------
> 2 files changed, 8 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
> index b90f858af960..e9ac215b9663 100644
> --- a/drivers/usb/dwc2/hcd.c
> +++ b/drivers/usb/dwc2/hcd.c
> @@ -3628,7 +3628,7 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq,
> "SetPortFeature - USB_PORT_FEAT_SUSPEND\n");
> if (windex != hsotg->otg_port)
> goto error;
> - if (hsotg->params.power_down == 2)
> + if (hsotg->params.power_down == DWC2_POWER_DOWN_PARAM_HIBERNATION)
> dwc2_enter_hibernation(hsotg, 1);
> else
> dwc2_port_suspend(hsotg, windex);
> @@ -3646,7 +3646,7 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq,
> break;
>
> case USB_PORT_FEAT_RESET:
> - if (hsotg->params.power_down == 2 &&
> + if (hsotg->params.power_down == DWC2_POWER_DOWN_PARAM_HIBERNATION &&
> hsotg->hibernated)
> dwc2_exit_hibernation(hsotg, 0, 1, 1);
> hprt0 = dwc2_read_hprt0(hsotg);
> diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c
> index ce736d67c7c3..8f9d061c4d5f 100644
> --- a/drivers/usb/dwc2/params.c
> +++ b/drivers/usb/dwc2/params.c
> @@ -68,14 +68,14 @@ static void dwc2_set_his_params(struct dwc2_hsotg *hsotg)
> p->ahbcfg = GAHBCFG_HBSTLEN_INCR16 <<
> GAHBCFG_HBSTLEN_SHIFT;
> p->change_speed_quirk = true;
> - p->power_down = false;
> + p->power_down = DWC2_POWER_DOWN_PARAM_NONE;
> }
>
> static void dwc2_set_s3c6400_params(struct dwc2_hsotg *hsotg)
> {
> struct dwc2_core_params *p = &hsotg->params;
>
> - p->power_down = 0;
> + p->power_down = DWC2_POWER_DOWN_PARAM_NONE;
> p->phy_utmi_width = 8;
> }
>
> @@ -89,7 +89,7 @@ static void dwc2_set_rk_params(struct dwc2_hsotg *hsotg)
> p->host_perio_tx_fifo_size = 256;
> p->ahbcfg = GAHBCFG_HBSTLEN_INCR16 <<
> GAHBCFG_HBSTLEN_SHIFT;
> - p->power_down = 0;
> + p->power_down = DWC2_POWER_DOWN_PARAM_NONE;
> }
>
> static void dwc2_set_ltq_params(struct dwc2_hsotg *hsotg)
> @@ -319,11 +319,11 @@ static void dwc2_set_param_power_down(struct dwc2_hsotg *hsotg)
> int val;
>
> if (hsotg->hw_params.hibernation)
> - val = 2;
> + val = DWC2_POWER_DOWN_PARAM_HIBERNATION;
> else if (hsotg->hw_params.power_optimized)
> - val = 1;
> + val = DWC2_POWER_DOWN_PARAM_PARTIAL;
> else
> - val = 0;
> + val = DWC2_POWER_DOWN_PARAM_NONE;
>
> hsotg->params.power_down = val;
> }
>

2020-06-18 08:25:26

by Greg Kroah-Hartman

Subject: Re: [PATCH] usb: dwc2: use well defined macros for power_down

On Tue, Jun 16, 2020 at 04:26:17PM +0800, Jisheng Zhang wrote:
> Use the well defined macros such as DWC2_POWER_DOWN_PARAM_NONE,
> DWC2_POWER_DOWN_PARAM_PARTIAL and DWC2_POWER_DOWN_PARAM_HIBERNATION
> to make code more readable.
>
> Signed-off-by: Jisheng Zhang <[email protected]>
> Acked-by: Minas Harutyunyan <[email protected]>
> ---
> drivers/usb/dwc2/hcd.c | 4 ++--
> drivers/usb/dwc2/params.c | 12 ++++++------
> 2 files changed, 8 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
> index b90f858af960..e9ac215b9663 100644
> --- a/drivers/usb/dwc2/hcd.c
> +++ b/drivers/usb/dwc2/hcd.c
> @@ -3628,7 +3628,7 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq,
> "SetPortFeature - USB_PORT_FEAT_SUSPEND\n");
> if (windex != hsotg->otg_port)
> goto error;
> - if (hsotg->params.power_down == 2)
> + if (hsotg->params.power_down == DWC2_POWER_DOWN_PARAM_HIBERNATION)
> dwc2_enter_hibernation(hsotg, 1);
> else
> dwc2_port_suspend(hsotg, windex);
> @@ -3646,7 +3646,7 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq,
> break;
>
> case USB_PORT_FEAT_RESET:
> - if (hsotg->params.power_down == 2 &&
> + if (hsotg->params.power_down == DWC2_POWER_DOWN_PARAM_HIBERNATION &&
> hsotg->hibernated)
> dwc2_exit_hibernation(hsotg, 0, 1, 1);
> hprt0 = dwc2_read_hprt0(hsotg);
> diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c
> index ce736d67c7c3..8f9d061c4d5f 100644
> --- a/drivers/usb/dwc2/params.c
> +++ b/drivers/usb/dwc2/params.c
> @@ -68,14 +68,14 @@ static void dwc2_set_his_params(struct dwc2_hsotg *hsotg)
> p->ahbcfg = GAHBCFG_HBSTLEN_INCR16 <<
> GAHBCFG_HBSTLEN_SHIFT;
> p->change_speed_quirk = true;
> - p->power_down = false;
> + p->power_down = DWC2_POWER_DOWN_PARAM_NONE;
> }
>
> static void dwc2_set_s3c6400_params(struct dwc2_hsotg *hsotg)
> {
> struct dwc2_core_params *p = &hsotg->params;
>
> - p->power_down = 0;
> + p->power_down = DWC2_POWER_DOWN_PARAM_NONE;
> p->phy_utmi_width = 8;
> }
>
> @@ -89,7 +89,7 @@ static void dwc2_set_rk_params(struct dwc2_hsotg *hsotg)
> p->host_perio_tx_fifo_size = 256;
> p->ahbcfg = GAHBCFG_HBSTLEN_INCR16 <<
> GAHBCFG_HBSTLEN_SHIFT;
> - p->power_down = 0;
> + p->power_down = DWC2_POWER_DOWN_PARAM_NONE;
> }
>
> static void dwc2_set_ltq_params(struct dwc2_hsotg *hsotg)
> @@ -319,11 +319,11 @@ static void dwc2_set_param_power_down(struct dwc2_hsotg *hsotg)
> int val;
>
> if (hsotg->hw_params.hibernation)
> - val = 2;
> + val = DWC2_POWER_DOWN_PARAM_HIBERNATION;
> else if (hsotg->hw_params.power_optimized)
> - val = 1;
> + val = DWC2_POWER_DOWN_PARAM_PARTIAL;
> else
> - val = 0;
> + val = DWC2_POWER_DOWN_PARAM_NONE;
>
> hsotg->params.power_down = val;
> }
> --
> 2.27.0
>

This does not apply to Linus's tree :(