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mfd: rtsx: Add shutdown callback in rtsx_pci_driver

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Some actions to clear power state should be handled in .shutdown
callback in rtsx_pci_driver. This patch adopts the following measures to
catch this goal:
1. Add a function rtsx_pci_power_off to abstract the common ops in
.shutdown and .suspend
2. Add pcr->ops->force_power_down to fulfill the individual action for
each reader model

Signed-off-by: Wei WANG <wei_wang@realsil.com.cn>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Wei WANG 2013-08-20 14:18:52 +08:00 committed by Samuel Ortiz
parent 773ccdfd9c
commit 5947c167d1
7 changed files with 85 additions and 12 deletions
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7
drivers/mfd/rtl8411.c
View File

@ -86,6 +86,11 @@ static void rtl8411b_fetch_vendor_settings(struct rtsx_pcr *pcr)
map_sd_drive(rtl8411b_reg_to_sd30_drive_sel_3v3(reg));
}
static void rtl8411_force_power_down(struct rtsx_pcr *pcr)
{
rtsx_pci_write_register(pcr, FPDCTL, 0x07, 0x07);
}
static int rtl8411_extra_init_hw(struct rtsx_pcr *pcr)
{
rtsx_pci_init_cmd(pcr);
@ -285,6 +290,7 @@ static const struct pcr_ops rtl8411_pcr_ops = {
.switch_output_voltage = rtl8411_switch_output_voltage,
.cd_deglitch = rtl8411_cd_deglitch,
.conv_clk_and_div_n = rtl8411_conv_clk_and_div_n,
.force_power_down = rtl8411_force_power_down,
};
static const struct pcr_ops rtl8411b_pcr_ops = {
@ -300,6 +306,7 @@ static const struct pcr_ops rtl8411b_pcr_ops = {
.switch_output_voltage = rtl8411_switch_output_voltage,
.cd_deglitch = rtl8411_cd_deglitch,
.conv_clk_and_div_n = rtl8411_conv_clk_and_div_n,
.force_power_down = rtl8411_force_power_down,
};
/* SD Pull Control Enable:

6
drivers/mfd/rts5209.c
View File

@ -59,6 +59,11 @@ static void rts5209_fetch_vendor_settings(struct rtsx_pcr *pcr)
}
}
static void rts5209_force_power_down(struct rtsx_pcr *pcr)
{
rtsx_pci_write_register(pcr, FPDCTL, 0x07, 0x07);
}
static int rts5209_extra_init_hw(struct rtsx_pcr *pcr)
{
rtsx_pci_init_cmd(pcr);
@ -197,6 +202,7 @@ static const struct pcr_ops rts5209_pcr_ops = {
.switch_output_voltage = rts5209_switch_output_voltage,
.cd_deglitch = NULL,
.conv_clk_and_div_n = NULL,
.force_power_down = rts5209_force_power_down,
};
/* SD Pull Control Enable:

11
drivers/mfd/rts5227.c
View File

@ -83,6 +83,16 @@ static void rts5227_fetch_vendor_settings(struct rtsx_pcr *pcr)
pcr->flags |= PCR_REVERSE_SOCKET;
}
static void rts5227_force_power_down(struct rtsx_pcr *pcr)
{
/* Set relink_time to 0 */
rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 1, 0xFF, 0);
rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 2, 0xFF, 0);
rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 3, 0x01, 0);
rtsx_pci_write_register(pcr, FPDCTL, 0x03, 0x03);
}
static int rts5227_extra_init_hw(struct rtsx_pcr *pcr)
{
u16 cap;
@ -218,6 +228,7 @@ static const struct pcr_ops rts5227_pcr_ops = {
.switch_output_voltage = rts5227_switch_output_voltage,
.cd_deglitch = NULL,
.conv_clk_and_div_n = NULL,
.force_power_down = rts5227_force_power_down,
};
/* SD Pull Control Enable:

6
drivers/mfd/rts5229.c
View File

@ -56,6 +56,11 @@ static void rts5229_fetch_vendor_settings(struct rtsx_pcr *pcr)
map_sd_drive(rtsx_reg_to_sd30_drive_sel_3v3(reg));
}
static void rts5229_force_power_down(struct rtsx_pcr *pcr)
{
rtsx_pci_write_register(pcr, FPDCTL, 0x03, 0x03);
}
static int rts5229_extra_init_hw(struct rtsx_pcr *pcr)
{
rtsx_pci_init_cmd(pcr);
@ -179,6 +184,7 @@ static const struct pcr_ops rts5229_pcr_ops = {
.switch_output_voltage = rts5229_switch_output_voltage,
.cd_deglitch = NULL,
.conv_clk_and_div_n = NULL,
.force_power_down = rts5229_force_power_down,
};
/* SD Pull Control Enable:

11
drivers/mfd/rts5249.c
View File

@ -88,6 +88,16 @@ static void rts5249_fetch_vendor_settings(struct rtsx_pcr *pcr)
pcr->flags |= PCR_REVERSE_SOCKET;
}
static void rts5249_force_power_down(struct rtsx_pcr *pcr)
{
/* Set relink_time to 0 */
rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 1, 0xFF, 0);
rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 2, 0xFF, 0);
rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 3, 0x01, 0);
rtsx_pci_write_register(pcr, FPDCTL, 0x03, 0x03);
}
static int rts5249_extra_init_hw(struct rtsx_pcr *pcr)
{
rtsx_pci_init_cmd(pcr);
@ -217,6 +227,7 @@ static const struct pcr_ops rts5249_pcr_ops = {
.card_power_on = rts5249_card_power_on,
.card_power_off = rts5249_card_power_off,
.switch_output_voltage = rts5249_switch_output_voltage,
.force_power_down = rts5249_force_power_down,
};
/* SD Pull Control Enable:

43
drivers/mfd/rtsx_pcr.c
View File

@ -927,6 +927,21 @@ static void rtsx_pci_idle_work(struct work_struct *work)
mutex_unlock(&pcr->pcr_mutex);
}
static void rtsx_pci_power_off(struct rtsx_pcr *pcr, u8 pm_state)
{
if (pcr->ops->turn_off_led)
pcr->ops->turn_off_led(pcr);
rtsx_pci_writel(pcr, RTSX_BIER, 0);
pcr->bier = 0;
rtsx_pci_write_register(pcr, PETXCFG, 0x08, 0x08);
rtsx_pci_write_register(pcr, HOST_SLEEP_STATE, 0x03, pm_state);
if (pcr->ops->force_power_down)
pcr->ops->force_power_down(pcr);
}
static int rtsx_pci_init_hw(struct rtsx_pcr *pcr)
{
int err;
@ -1255,7 +1270,6 @@ static int rtsx_pci_suspend(struct pci_dev *pcidev, pm_message_t state)
{
struct pcr_handle *handle;
struct rtsx_pcr *pcr;
int ret = 0;
dev_dbg(&(pcidev->dev), "--> %s\n", __func__);
@ -1267,14 +1281,7 @@ static int rtsx_pci_suspend(struct pci_dev *pcidev, pm_message_t state)
mutex_lock(&pcr->pcr_mutex);
if (pcr->ops->turn_off_led)
pcr->ops->turn_off_led(pcr);
rtsx_pci_writel(pcr, RTSX_BIER, 0);
pcr->bier = 0;
rtsx_pci_write_register(pcr, PETXCFG, 0x08, 0x08);
rtsx_pci_write_register(pcr, HOST_SLEEP_STATE, 0x03, 0x02);
rtsx_pci_power_off(pcr, HOST_ENTER_S3);
pci_save_state(pcidev);
pci_enable_wake(pcidev, pci_choose_state(pcidev, state), 0);
@ -1282,7 +1289,7 @@ static int rtsx_pci_suspend(struct pci_dev *pcidev, pm_message_t state)
pci_set_power_state(pcidev, pci_choose_state(pcidev, state));
mutex_unlock(&pcr->pcr_mutex);
return ret;
return 0;
}
static int rtsx_pci_resume(struct pci_dev *pcidev)
@ -1320,10 +1327,25 @@ out:
return ret;
}
static void rtsx_pci_shutdown(struct pci_dev *pcidev)
{
struct pcr_handle *handle;
struct rtsx_pcr *pcr;
dev_dbg(&(pcidev->dev), "--> %s\n", __func__);
handle = pci_get_drvdata(pcidev);
pcr = handle->pcr;
rtsx_pci_power_off(pcr, HOST_ENTER_S1);
pci_disable_device(pcidev);
}
#else /* CONFIG_PM */
#define rtsx_pci_suspend NULL
#define rtsx_pci_resume NULL
#define rtsx_pci_shutdown NULL
#endif /* CONFIG_PM */
@ -1334,6 +1356,7 @@ static struct pci_driver rtsx_pci_driver = {
.remove = rtsx_pci_remove,
.suspend = rtsx_pci_suspend,
.resume = rtsx_pci_resume,
.shutdown = rtsx_pci_shutdown,
};
module_pci_driver(rtsx_pci_driver);

13
include/linux/mfd/rtsx_pci.h
View File

@ -25,8 +25,7 @@
#include <linux/sched.h>
#include <linux/pci.h>
#include "rtsx_common.h"
#include <linux/mfd/rtsx_common.h>
#define MAX_RW_REG_CNT 1024
@ -536,6 +535,10 @@
#define SAMPLE_VAR_CLK0 (0x01 << 4)
#define SAMPLE_VAR_CLK1 (0x02 << 4)
/* HOST_SLEEP_STATE */
#define HOST_ENTER_S1 1
#define HOST_ENTER_S3 2
#define MS_CFG 0xFD40
#define MS_TPC 0xFD41
#define MS_TRANS_CFG 0xFD42
@ -701,6 +704,11 @@
#define AUTOLOAD_CFG_BASE 0xFF00
#define PM_CTRL1 0xFF44
#define PM_CTRL2 0xFF45
#define PM_CTRL3 0xFF46
#define PM_CTRL4 0xFF47
/* Memory mapping */
#define SRAM_BASE 0xE600
#define RBUF_BASE 0xF400
@ -770,6 +778,7 @@ struct pcr_ops {
unsigned int (*cd_deglitch)(struct rtsx_pcr *pcr);
int (*conv_clk_and_div_n)(int clk, int dir);
void (*fetch_vendor_settings)(struct rtsx_pcr *pcr);
void (*force_power_down)(struct rtsx_pcr *pcr);
};
enum PDEV_STAT {PDEV_STAT_IDLE, PDEV_STAT_RUN};