From: Hema HK <hemahk@ti.com>
To: linux-usb@vger.kernel.org
Cc: linux-omap@vger.kernel.org, "Kalliguddi, Hema" <hemahk@ti.com>,
Felipe Balbi <balbi@ti.com>, Tony Lindgren <tony@atomide.com>,
Paul Walmsley <paul@pwsan.com>
Subject: [4/7 v4] usb: otg: OMAP4430: Introducing suspend function for power management
Date: Thu, 17 Feb 2011 12:06:07 +0530 [thread overview]
Message-ID: <1297924570-3750-4-git-send-email-hemahk@ti.com> (raw)
In-Reply-To: <1297924570-3750-1-git-send-email-hemahk@ti.com>
From: Kalliguddi, Hema <hemahk@ti.com>
Introduced the suspend/resume function for the OMAP4430 internal PHY.
This will be used by the twl6030-usb transceiver driver.
Moved the clock enable/disable function calls and power on/off of the PHY
code from power on/off functions to suspend/resume function.
Pass the suspend function through board data for OMAP4430sdp and OMAP4panda.
This will be used by the twl6030-usb transceiver driver.
Signed-off-by: Hema HK <hemahk@ti.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Paul Walmsley <paul@pwsan.com>
---
arch/arm/mach-omap2/omap_phy_internal.c | 22 +++++++++++++++-------
arch/arm/mach-omap2/board-4430sdp.c | 1 +
arch/arm/mach-omap2/board-omap4panda.c | 1 +
arch/arm/mach-omap2/omap_phy_internal.c | 22 +++++++++++++++-------
arch/arm/plat-omap/include/plat/usb.h | 1 +
4 files changed, 18 insertions(+), 7 deletions(-)
Index: linux-2.6/arch/arm/mach-omap2/omap_phy_internal.c
===================================================================
--- linux-2.6.orig/arch/arm/mach-omap2/omap_phy_internal.c
+++ linux-2.6/arch/arm/mach-omap2/omap_phy_internal.c
@@ -104,13 +104,6 @@ int omap4430_phy_set_clk(struct device *
int omap4430_phy_power(struct device *dev, int ID, int on)
{
if (on) {
- /* enabled the clocks */
- omap4430_phy_set_clk(dev, 1);
- /* power on the phy */
- if (__raw_readl(ctrl_base + CONTROL_DEV_CONF) & PHY_PD) {
- __raw_writel(~PHY_PD, ctrl_base + CONTROL_DEV_CONF);
- mdelay(200);
- }
if (ID)
/* enable VBUS valid, IDDIG groung */
__raw_writel(AVALID | VBUSVALID, ctrl_base +
@@ -126,10 +119,25 @@ int omap4430_phy_power(struct device *de
/* Enable session END and IDIG to high impedence. */
__raw_writel(SESSEND | IDDIG, ctrl_base +
USBOTGHS_CONTROL);
+ }
+ return 0;
+}
+
+int omap4430_phy_suspend(struct device *dev, int suspend)
+{
+ if (suspend) {
/* Disable the clocks */
omap4430_phy_set_clk(dev, 0);
/* Power down the phy */
__raw_writel(PHY_PD, ctrl_base + CONTROL_DEV_CONF);
+ } else {
+ /* Enable the internel phy clcoks */
+ omap4430_phy_set_clk(dev, 1);
+ /* power on the phy */
+ if (__raw_readl(ctrl_base + CONTROL_DEV_CONF) & PHY_PD) {
+ __raw_writel(~PHY_PD, ctrl_base + CONTROL_DEV_CONF);
+ mdelay(200);
+ }
}
return 0;
Index: linux-2.6/arch/arm/plat-omap/include/plat/usb.h
===================================================================
--- linux-2.6.orig/arch/arm/plat-omap/include/plat/usb.h
+++ linux-2.6/arch/arm/plat-omap/include/plat/usb.h
@@ -88,6 +88,7 @@ extern int omap4430_phy_power(struct dev
extern int omap4430_phy_set_clk(struct device *dev, int on);
extern int omap4430_phy_init(struct device *dev);
extern int omap4430_phy_exit(struct device *dev);
+extern int omap4430_phy_suspend(struct device *dev, int suspend);
#endif
Index: linux-2.6/arch/arm/mach-omap2/board-4430sdp.c
===================================================================
--- linux-2.6.orig/arch/arm/mach-omap2/board-4430sdp.c
+++ linux-2.6/arch/arm/mach-omap2/board-4430sdp.c
@@ -272,6 +272,7 @@ static struct twl4030_usb_data omap4_usb
.phy_exit = omap4430_phy_exit,
.phy_power = omap4430_phy_power,
.phy_set_clock = omap4430_phy_set_clk,
+ .phy_suspend = omap4430_phy_suspend,
};
static struct omap2_hsmmc_info mmc[] = {
Index: linux-2.6/arch/arm/mach-omap2/board-omap4panda.c
===================================================================
--- linux-2.6.orig/arch/arm/mach-omap2/board-omap4panda.c
+++ linux-2.6/arch/arm/mach-omap2/board-omap4panda.c
@@ -153,6 +153,7 @@ static struct twl4030_usb_data omap4_usb
.phy_exit = omap4430_phy_exit,
.phy_power = omap4430_phy_power,
.phy_set_clock = omap4430_phy_set_clk,
+ .phy_suspend = omap4430_phy_suspend,
};
static struct omap2_hsmmc_info mmc[] = {
next prev parent reply other threads:[~2011-02-17 6:36 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-17 6:36 [1/7 v4] usb: otg: enable regulator only on cable/device connect Hema HK
2011-02-17 6:36 ` [2/7 v4] usb: otg: Remove one unnecessary I2C read request Hema HK
2011-02-17 6:36 ` [3/7 v4] usb: otg: OMAP4430: Add phy_suspend function pointer to twl4030_usb_data Hema HK
2011-02-17 6:36 ` Hema HK [this message]
2011-02-17 6:36 ` [5/7 v4] usb: otg: TWL6030: Introduce the twl6030_phy_suspend function Hema HK
[not found] ` <1297924570-3750-1-git-send-email-hemahk-l0cyMroinI0@public.gmane.org>
2011-02-17 6:36 ` [6/7 v4] usb: otg: TWL6030 Save the last event in otg_transceiver Hema HK
2011-02-17 6:36 ` [7/7 v4] usb: musb: OMAP4430: Fix usb device detection if connected during boot Hema HK
2011-02-17 12:20 ` [1/7 v4] usb: otg: enable regulator only on cable/device connect Felipe Balbi
2011-02-17 12:25 ` Felipe Balbi
2011-02-17 12:31 ` Felipe Balbi
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1297924570-3750-4-git-send-email-hemahk@ti.com \
--to=hemahk@ti.com \
--cc=balbi@ti.com \
--cc=linux-omap@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=paul@pwsan.com \
--cc=tony@atomide.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.