[PATCH] misc: rtsx: Enable OCP for rts522a rts524a rts525a rts5260

From: ricky_wu
Date: Tue Feb 19 2019 - 07:50:26 EST

From: RickyWu <ricky_wu@xxxxxxxxxxx>

this enables and adds OCP function for Realtek A series cardreader chips
and fixes some OCP flow in rts5260.c
Signed-off-by: RickyWu <ricky_wu@xxxxxxxxxxx>
---
drivers/misc/cardreader/rts5227.c | 64 +++++++++++---
drivers/misc/cardreader/rts5249.c | 32 +++++--
drivers/misc/cardreader/rts5260.c | 136 +++++++++++------------------
drivers/misc/cardreader/rtsx_pcr.c | 40 +++++++--
drivers/misc/cardreader/rtsx_pcr.h | 5 ++
5 files changed, 165 insertions(+), 112 deletions(-)

diff --git a/drivers/misc/cardreader/rts5227.c b/drivers/misc/cardreader/rts5227.c
index 024dcba8d6c8..5c98e2221889 100644
--- a/drivers/misc/cardreader/rts5227.c
+++ b/drivers/misc/cardreader/rts5227.c
@@ -170,35 +170,46 @@ static int rts5227_card_power_on(struct rtsx_pcr *pcr, int card)
{
int err;

+ if (pcr->option.ocp_en)
+ rtsx_pci_enable_ocp(pcr);
+
rtsx_pci_init_cmd(pcr);
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
SD_POWER_MASK, SD_PARTIAL_POWER_ON);
+
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
LDO3318_PWR_MASK, 0x02);
+
err = rtsx_pci_send_cmd(pcr, 100);
if (err < 0)
return err;

/* To avoid too large in-rush current */
- udelay(150);
-
+ msleep(20);
rtsx_pci_init_cmd(pcr);
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
SD_POWER_MASK, SD_POWER_ON);
+
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
LDO3318_PWR_MASK, 0x06);
+
+ rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_OE,
+ SD_OUTPUT_EN, SD_OUTPUT_EN);
+ rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_OE,
+ MS_OUTPUT_EN, MS_OUTPUT_EN);
return rtsx_pci_send_cmd(pcr, 100);
}

static int rts5227_card_power_off(struct rtsx_pcr *pcr, int card)
{
- rtsx_pci_init_cmd(pcr);
- rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
- SD_POWER_MASK | PMOS_STRG_MASK,
- SD_POWER_OFF | PMOS_STRG_400mA);
- rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
- LDO3318_PWR_MASK, 0X00);
- return rtsx_pci_send_cmd(pcr, 100);
+ if (pcr->option.ocp_en)
+ rtsx_pci_disable_ocp(pcr);
+
+ rtsx_pci_write_register(pcr, CARD_PWR_CTL, SD_POWER_MASK |
+ PMOS_STRG_MASK, SD_POWER_OFF | PMOS_STRG_400mA);
+ rtsx_pci_write_register(pcr, PWR_GATE_CTRL, LDO3318_PWR_MASK, 0X00);
+
+ return 0;
}

static int rts5227_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
@@ -348,6 +359,32 @@ static int rts522a_extra_init_hw(struct rtsx_pcr *pcr)
return 0;
}

+static int rts522a_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
+{
+ int err;
+
+ if (voltage == OUTPUT_3V3) {
+ err = rtsx_pci_write_phy_register(pcr, 0x08, 0x57E4);
+ if (err < 0)
+ return err;
+ } else if (voltage == OUTPUT_1V8) {
+ err = rtsx_pci_write_phy_register(pcr, 0x11, 0x3C02);
+ if (err < 0)
+ return err;
+ err = rtsx_pci_write_phy_register(pcr, 0x08, 0x54A4);
+ if (err < 0)
+ return err;
+ } else {
+ return -EINVAL;
+ }
+
+ /* set pad drive */
+ rtsx_pci_init_cmd(pcr);
+ rts5227_fill_driving(pcr, voltage);
+ return rtsx_pci_send_cmd(pcr, 100);
+}
+
+
/* rts522a operations mainly derived from rts5227, except phy/hw init setting.
*/
static const struct pcr_ops rts522a_pcr_ops = {
@@ -360,7 +397,7 @@ static const struct pcr_ops rts522a_pcr_ops = {
.disable_auto_blink = rts5227_disable_auto_blink,
.card_power_on = rts5227_card_power_on,
.card_power_off = rts5227_card_power_off,
- .switch_output_voltage = rts5227_switch_output_voltage,
+ .switch_output_voltage = rts522a_switch_output_voltage,
.cd_deglitch = NULL,
.conv_clk_and_div_n = NULL,
.force_power_down = rts5227_force_power_down,
@@ -371,4 +408,11 @@ void rts522a_init_params(struct rtsx_pcr *pcr)
rts5227_init_params(pcr);

pcr->reg_pm_ctrl3 = RTS522A_PM_CTRL3;
+
+ pcr->option.ocp_en = 1;
+ if (pcr->option.ocp_en)
+ pcr->hw_param.interrupt_en |= SD_OC_INT_EN;
+ pcr->hw_param.ocp_glitch = SD_OCP_GLITCH_10M;
+ pcr->option.sd_800mA_ocp_thd = RTS522A_OCP_THD_800;
+
}
diff --git a/drivers/misc/cardreader/rts5249.c b/drivers/misc/cardreader/rts5249.c
index dbe013abdb83..0f72a7e0fdab 100644
--- a/drivers/misc/cardreader/rts5249.c
+++ b/drivers/misc/cardreader/rts5249.c
@@ -284,6 +284,10 @@ static int rtsx_base_disable_auto_blink(struct rtsx_pcr *pcr)
static int rtsx_base_card_power_on(struct rtsx_pcr *pcr, int card)
{
int err;
+ struct rtsx_cr_option *option = &pcr->option;
+
+ if (option->ocp_en)
+ rtsx_pci_enable_ocp(pcr);

rtsx_pci_init_cmd(pcr);
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
@@ -306,12 +310,15 @@ static int rtsx_base_card_power_on(struct rtsx_pcr *pcr, int card)

static int rtsx_base_card_power_off(struct rtsx_pcr *pcr, int card)
{
- rtsx_pci_init_cmd(pcr);
- rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
- SD_POWER_MASK, SD_POWER_OFF);
- rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
- LDO3318_PWR_MASK, 0x00);
- return rtsx_pci_send_cmd(pcr, 100);
+ struct rtsx_cr_option *option = &pcr->option;
+
+ if (option->ocp_en)
+ rtsx_pci_disable_ocp(pcr);
+
+ rtsx_pci_write_register(pcr, CARD_PWR_CTL, SD_POWER_MASK, SD_POWER_OFF);
+
+ rtsx_pci_write_register(pcr, PWR_GATE_CTRL, LDO3318_PWR_MASK, 0x00);
+ return 0;
}

static int rtsx_base_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
@@ -629,6 +636,13 @@ void rts524a_init_params(struct rtsx_pcr *pcr)

pcr->reg_pm_ctrl3 = RTS524A_PM_CTRL3;
pcr->ops = &rts524a_pcr_ops;
+
+ pcr->option.ocp_en = 1;
+ if (pcr->option.ocp_en)
+ pcr->hw_param.interrupt_en |= SD_OC_INT_EN;
+ pcr->hw_param.ocp_glitch = SD_OCP_GLITCH_10M;
+ pcr->option.sd_800mA_ocp_thd = RTS524A_OCP_THD_800;
+
}

static int rts525a_card_power_on(struct rtsx_pcr *pcr, int card)
@@ -737,4 +751,10 @@ void rts525a_init_params(struct rtsx_pcr *pcr)

pcr->reg_pm_ctrl3 = RTS524A_PM_CTRL3;
pcr->ops = &rts525a_pcr_ops;
+
+ pcr->option.ocp_en = 1;
+ if (pcr->option.ocp_en)
+ pcr->hw_param.interrupt_en |= SD_OC_INT_EN;
+ pcr->hw_param.ocp_glitch = SD_OCP_GLITCH_10M;
+ pcr->option.sd_800mA_ocp_thd = RTS525A_OCP_THD_800;
}
diff --git a/drivers/misc/cardreader/rts5260.c b/drivers/misc/cardreader/rts5260.c
index a493b01c5bc6..da22bcb62b04 100644
--- a/drivers/misc/cardreader/rts5260.c
+++ b/drivers/misc/cardreader/rts5260.c
@@ -64,11 +64,13 @@ static void rts5260_fill_driving(struct rtsx_pcr *pcr, u8 voltage)
drive_sel = pcr->sd30_drive_sel_1v8;
}

- rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_CLK_DRIVE_SEL,
+ rtsx_pci_write_register(pcr, SD30_CLK_DRIVE_SEL,
0xFF, driving[drive_sel][0]);
- rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_CMD_DRIVE_SEL,
+
+ rtsx_pci_write_register(pcr, SD30_CMD_DRIVE_SEL,
0xFF, driving[drive_sel][1]);
- rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_DAT_DRIVE_SEL,
+
+ rtsx_pci_write_register(pcr, SD30_CMD_DRIVE_SEL,
0xFF, driving[drive_sel][2]);
}

@@ -193,7 +195,7 @@ static int sd_set_sample_push_timing_sd30(struct rtsx_pcr *pcr)
| SD_ASYNC_FIFO_NOT_RST, SD_30_MODE | SD_ASYNC_FIFO_NOT_RST);
rtsx_pci_write_register(pcr, CLK_CTL, CLK_LOW_FREQ, CLK_LOW_FREQ);
rtsx_pci_write_register(pcr, CARD_CLK_SOURCE, 0xFF,
- CRC_VAR_CLK0 | SD30_FIX_CLK | SAMPLE_VAR_CLK1);
+ CRC_VAR_CLK0 | SD30_FIX_CLK | SAMPLE_VAR_CLK1);
rtsx_pci_write_register(pcr, CLK_CTL, CLK_LOW_FREQ, 0);

return 0;
@@ -207,22 +209,16 @@ static int rts5260_card_power_on(struct rtsx_pcr *pcr, int card)
if (option->ocp_en)
rtsx_pci_enable_ocp(pcr);

- rtsx_pci_init_cmd(pcr);
- rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_CONFIG2,
- DV331812_VDD1, DV331812_VDD1);
- err = rtsx_pci_send_cmd(pcr, CMD_TIMEOUT_DEF);
- if (err < 0)
- return err;

- rtsx_pci_init_cmd(pcr);
- rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_VCC_CFG0,
+ rtsx_pci_write_register(pcr, LDO_CONFIG2, DV331812_VDD1, DV331812_VDD1);
+ rtsx_pci_write_register(pcr, LDO_VCC_CFG0,
RTS5260_DVCC_TUNE_MASK, RTS5260_DVCC_33);
- rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_VCC_CFG1,
- LDO_POW_SDVDD1_MASK, LDO_POW_SDVDD1_ON);
- rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_CONFIG2,
- DV331812_POWERON, DV331812_POWERON);
- err = rtsx_pci_send_cmd(pcr, CMD_TIMEOUT_DEF);

+ rtsx_pci_write_register(pcr, LDO_VCC_CFG1, LDO_POW_SDVDD1_MASK,
+ LDO_POW_SDVDD1_ON);
+
+ rtsx_pci_write_register(pcr, LDO_CONFIG2,
+ DV331812_POWERON, DV331812_POWERON);
msleep(20);

if (pcr->extra_caps & EXTRA_CAPS_SD_SDR50 ||
@@ -242,8 +238,8 @@ static int rts5260_card_power_on(struct rtsx_pcr *pcr, int card)
/* Reset SD_CFG3 register */
rtsx_pci_write_register(pcr, SD_CFG3, SD30_CLK_END_EN, 0);
rtsx_pci_write_register(pcr, REG_SD_STOP_SDCLK_CFG,
- SD30_CLK_STOP_CFG_EN | SD30_CLK_STOP_CFG1 |
- SD30_CLK_STOP_CFG0, 0);
+ SD30_CLK_STOP_CFG_EN | SD30_CLK_STOP_CFG1 |
+ SD30_CLK_STOP_CFG0, 0);

rtsx_pci_write_register(pcr, REG_PRE_RW_MODE, EN_INFINITE_MODE, 0);

@@ -273,9 +269,9 @@ static int rts5260_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
}

/* set pad drive */
- rtsx_pci_init_cmd(pcr);
rts5260_fill_driving(pcr, voltage);
- return rtsx_pci_send_cmd(pcr, CMD_TIMEOUT_DEF);
+
+ return 0;
}

static void rts5260_stop_cmd(struct rtsx_pcr *pcr)
@@ -290,13 +286,9 @@ static void rts5260_stop_cmd(struct rtsx_pcr *pcr)

static void rts5260_card_before_power_off(struct rtsx_pcr *pcr)
{
- struct rtsx_cr_option *option = &pcr->option;
-
rts5260_stop_cmd(pcr);
rts5260_switch_output_voltage(pcr, OUTPUT_3V3);

- if (option->ocp_en)
- rtsx_pci_disable_ocp(pcr);
}

static int rts5260_card_power_off(struct rtsx_pcr *pcr, int card)
@@ -304,13 +296,12 @@ static int rts5260_card_power_off(struct rtsx_pcr *pcr, int card)
int err = 0;

rts5260_card_before_power_off(pcr);
-
- rtsx_pci_init_cmd(pcr);
- rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_VCC_CFG1,
+ err = rtsx_pci_write_register(pcr, LDO_VCC_CFG1,
LDO_POW_SDVDD1_MASK, LDO_POW_SDVDD1_OFF);
- rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_CONFIG2,
+ err = rtsx_pci_write_register(pcr, LDO_CONFIG2,
DV331812_POWERON, DV331812_POWEROFF);
- err = rtsx_pci_send_cmd(pcr, CMD_TIMEOUT_DEF);
+ if (pcr->option.ocp_en)
+ rtsx_pci_disable_ocp(pcr);

return err;
}
@@ -322,41 +313,29 @@ static void rts5260_init_ocp(struct rtsx_pcr *pcr)
if (option->ocp_en) {
u8 mask, val;

- rtsx_pci_write_register(pcr, RTS5260_DVCC_CTRL,
- RTS5260_DVCC_OCP_EN |
- RTS5260_DVCC_OCP_CL_EN,
- RTS5260_DVCC_OCP_EN |
- RTS5260_DVCC_OCP_CL_EN);
- rtsx_pci_write_register(pcr, RTS5260_DVIO_CTRL,
- RTS5260_DVIO_OCP_EN |
- RTS5260_DVIO_OCP_CL_EN,
- RTS5260_DVIO_OCP_EN |
- RTS5260_DVIO_OCP_CL_EN);

rtsx_pci_write_register(pcr, RTS5260_DVCC_CTRL,
- RTS5260_DVCC_OCP_THD_MASK,
- option->sd_400mA_ocp_thd);
-
- rtsx_pci_write_register(pcr, RTS5260_DVIO_CTRL,
- RTS5260_DVIO_OCP_THD_MASK,
- RTS5260_DVIO_OCP_THD_350);
+ RTS5260_DVCC_OCP_THD_MASK,
+ option->sd_800mA_ocp_thd);

rtsx_pci_write_register(pcr, RTS5260_DV331812_CFG,
- RTS5260_DV331812_OCP_THD_MASK,
- RTS5260_DV331812_OCP_THD_210);
+ RTS5260_DV331812_OCP_THD_MASK,
+ RTS5260_DV331812_OCP_THD_270);

- mask = SD_OCP_GLITCH_MASK | SDVIO_OCP_GLITCH_MASK;
+ mask = SD_OCP_GLITCH_MASK;
val = pcr->hw_param.ocp_glitch;
rtsx_pci_write_register(pcr, REG_OCPGLITCH, mask, val);
+ rtsx_pci_write_register(pcr, RTS5260_DVCC_CTRL,
+ RTS5260_DVCC_OCP_EN |
+ RTS5260_DVCC_OCP_CL_EN,
+ RTS5260_DVCC_OCP_EN |
+ RTS5260_DVCC_OCP_CL_EN);

rtsx_pci_enable_ocp(pcr);
} else {
rtsx_pci_write_register(pcr, RTS5260_DVCC_CTRL,
RTS5260_DVCC_OCP_EN |
RTS5260_DVCC_OCP_CL_EN, 0);
- rtsx_pci_write_register(pcr, RTS5260_DVIO_CTRL,
- RTS5260_DVIO_OCP_EN |
- RTS5260_DVIO_OCP_CL_EN, 0);
}
}

@@ -364,14 +343,9 @@ static void rts5260_enable_ocp(struct rtsx_pcr *pcr)
{
u8 val = 0;

- rtsx_pci_write_register(pcr, FPDCTL, OC_POWER_DOWN, 0);
-
val = SD_OCP_INT_EN | SD_DETECT_EN;
- val |= SDVIO_OCP_INT_EN | SDVIO_DETECT_EN;
rtsx_pci_write_register(pcr, REG_OCPCTL, 0xFF, val);
- rtsx_pci_write_register(pcr, REG_DV3318_OCPCTL,
- DV3318_DETECT_EN | DV3318_OCP_INT_EN,
- DV3318_DETECT_EN | DV3318_OCP_INT_EN);
+
}

static void rts5260_disable_ocp(struct rtsx_pcr *pcr)
@@ -379,15 +353,11 @@ static void rts5260_disable_ocp(struct rtsx_pcr *pcr)
u8 mask = 0;

mask = SD_OCP_INT_EN | SD_DETECT_EN;
- mask |= SDVIO_OCP_INT_EN | SDVIO_DETECT_EN;
rtsx_pci_write_register(pcr, REG_OCPCTL, mask, 0);
- rtsx_pci_write_register(pcr, REG_DV3318_OCPCTL,
- DV3318_DETECT_EN | DV3318_OCP_INT_EN, 0);

- rtsx_pci_write_register(pcr, FPDCTL, OC_POWER_DOWN,
- OC_POWER_DOWN);
}

+
static int rts5260_get_ocpstat(struct rtsx_pcr *pcr, u8 *val)
{
return rtsx_pci_read_register(pcr, REG_OCPSTAT, val);
@@ -404,9 +374,7 @@ static void rts5260_clear_ocpstat(struct rtsx_pcr *pcr)
u8 val = 0;

mask = SD_OCP_INT_CLR | SD_OC_CLR;
- mask |= SDVIO_OCP_INT_CLR | SDVIO_OC_CLR;
val = SD_OCP_INT_CLR | SD_OC_CLR;
- val |= SDVIO_OCP_INT_CLR | SDVIO_OC_CLR;

rtsx_pci_write_register(pcr, REG_OCPCTL, mask, val);
rtsx_pci_write_register(pcr, REG_DV3318_OCPCTL,
@@ -425,36 +393,22 @@ static void rts5260_process_ocp(struct rtsx_pcr *pcr)

rtsx_pci_get_ocpstat(pcr, &pcr->ocp_stat);
rts5260_get_ocpstat2(pcr, &pcr->ocp_stat2);
- if (pcr->card_exist & SD_EXIST)
- rtsx_sd_power_off_card3v3(pcr);
- else if (pcr->card_exist & MS_EXIST)
- rtsx_ms_power_off_card3v3(pcr);
-
- if (!(pcr->card_exist & MS_EXIST) && !(pcr->card_exist & SD_EXIST)) {
- if ((pcr->ocp_stat & (SD_OC_NOW | SD_OC_EVER |
- SDVIO_OC_NOW | SDVIO_OC_EVER)) ||
- (pcr->ocp_stat2 & (DV3318_OCP_NOW | DV3318_OCP_EVER)))
- rtsx_pci_clear_ocpstat(pcr);
+
+ if ((pcr->ocp_stat & (SD_OC_NOW | SD_OC_EVER)) ||
+ (pcr->ocp_stat2 & (DV3318_OCP_NOW | DV3318_OCP_EVER))) {
+ rtsx_pci_card_power_off(pcr, RTSX_SD_CARD);
+ rtsx_pci_write_register(pcr, CARD_OE, SD_OUTPUT_EN, 0);
+ rtsx_pci_clear_ocpstat(pcr);
pcr->ocp_stat = 0;
pcr->ocp_stat2 = 0;
}

- if ((pcr->ocp_stat & (SD_OC_NOW | SD_OC_EVER |
- SDVIO_OC_NOW | SDVIO_OC_EVER)) ||
- (pcr->ocp_stat2 & (DV3318_OCP_NOW | DV3318_OCP_EVER))) {
- if (pcr->card_exist & SD_EXIST)
- rtsx_pci_write_register(pcr, CARD_OE, SD_OUTPUT_EN, 0);
- else if (pcr->card_exist & MS_EXIST)
- rtsx_pci_write_register(pcr, CARD_OE, MS_OUTPUT_EN, 0);
- }
}

static int rts5260_init_hw(struct rtsx_pcr *pcr)
{
int err;

- rtsx_pci_init_ocp(pcr);
-
rtsx_pci_init_cmd(pcr);

rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, L1SUB_CONFIG1,
@@ -483,6 +437,8 @@ static int rts5260_init_hw(struct rtsx_pcr *pcr)
if (err < 0)
return err;

+ rtsx_pci_init_ocp(pcr);
+
return 0;
}

@@ -499,7 +455,13 @@ static void rts5260_pwr_saving_setting(struct rtsx_pcr *pcr)
pcr_dbg(pcr, "Set parameters for L1.2.");
rtsx_pci_write_register(pcr, PWR_GLOBAL_CTRL,
0xFF, PCIE_L1_2_EN);
- rtsx_pci_write_register(pcr, PWR_FE_CTL,
+ rtsx_pci_write_register(pcr, RTS5260_DVCC_CTRL,
+ RTS5260_DVCC_OCP_EN |
+ RTS5260_DVCC_OCP_CL_EN,
+ RTS5260_DVCC_OCP_EN |
+ RTS5260_DVCC_OCP_CL_EN);
+
+ rtsx_pci_write_register(pcr, PWR_FE_CTL,
0xFF, PCIE_L1_2_PD_FE_EN);
} else if (lss_l1_1) {
pcr_dbg(pcr, "Set parameters for L1.1.");
@@ -742,7 +704,7 @@ void rts5260_init_params(struct rtsx_pcr *pcr)
option->ocp_en = 1;
if (option->ocp_en)
hw_param->interrupt_en |= SD_OC_INT_EN;
- hw_param->ocp_glitch = SD_OCP_GLITCH_10M | SDVIO_OCP_GLITCH_800U;
+ hw_param->ocp_glitch = SDVIO_OCP_GLITCH_800U | SDVIO_OCP_GLITCH_800U;
option->sd_400mA_ocp_thd = RTS5260_DVCC_OCP_THD_550;
option->sd_800mA_ocp_thd = RTS5260_DVCC_OCP_THD_970;
}
diff --git a/drivers/misc/cardreader/rtsx_pcr.c b/drivers/misc/cardreader/rtsx_pcr.c
index da445223f4cc..0d320e0ab4c9 100644
--- a/drivers/misc/cardreader/rtsx_pcr.c
+++ b/drivers/misc/cardreader/rtsx_pcr.c
@@ -703,7 +703,10 @@ EXPORT_SYMBOL_GPL(rtsx_pci_card_pull_ctl_disable);

static void rtsx_pci_enable_bus_int(struct rtsx_pcr *pcr)
{
- pcr->bier = TRANS_OK_INT_EN | TRANS_FAIL_INT_EN | SD_INT_EN;
+ struct rtsx_hw_param *hw_param = &pcr->hw_param;
+
+ pcr->bier = TRANS_OK_INT_EN | TRANS_FAIL_INT_EN | SD_INT_EN
+ | hw_param->interrupt_en;

if (pcr->num_slots > 1)
pcr->bier |= MS_INT_EN;
@@ -969,8 +972,19 @@ static void rtsx_pci_card_detect(struct work_struct *work)

static void rtsx_pci_process_ocp(struct rtsx_pcr *pcr)
{
- if (pcr->ops->process_ocp)
+ if (pcr->ops->process_ocp) {
pcr->ops->process_ocp(pcr);
+ } else {
+ if (!pcr->option.ocp_en)
+ return;
+ rtsx_pci_get_ocpstat(pcr, &pcr->ocp_stat);
+ if (pcr->ocp_stat & (SD_OC_NOW | SD_OC_EVER)) {
+ rtsx_pci_card_power_off(pcr, RTSX_SD_CARD);
+ rtsx_pci_write_register(pcr, CARD_OE, SD_OUTPUT_EN, 0);
+ rtsx_pci_clear_ocpstat(pcr);
+ pcr->ocp_stat = 0;
+ }
+ }
}

static int rtsx_pci_process_ocp_interrupt(struct rtsx_pcr *pcr)
@@ -1039,7 +1053,7 @@ static irqreturn_t rtsx_pci_isr(int irq, void *dev_id)
}
}

- if (pcr->card_inserted || pcr->card_removed)
+ if ((pcr->card_inserted || pcr->card_removed) && !(int_reg & SD_OC_INT))
schedule_delayed_work(&pcr->carddet_work,
msecs_to_jiffies(200));

@@ -1144,10 +1158,12 @@ void rtsx_pci_enable_ocp(struct rtsx_pcr *pcr)
{
u8 val = SD_OCP_INT_EN | SD_DETECT_EN;

- if (pcr->ops->enable_ocp)
+ if (pcr->ops->enable_ocp) {
pcr->ops->enable_ocp(pcr);
- else
+ } else {
+ rtsx_pci_write_register(pcr, FPDCTL, OC_POWER_DOWN, 0);
rtsx_pci_write_register(pcr, REG_OCPCTL, 0xFF, val);
+ }

}

@@ -1155,10 +1171,13 @@ void rtsx_pci_disable_ocp(struct rtsx_pcr *pcr)
{
u8 mask = SD_OCP_INT_EN | SD_DETECT_EN;

- if (pcr->ops->disable_ocp)
+ if (pcr->ops->disable_ocp) {
pcr->ops->disable_ocp(pcr);
- else
+ } else {
rtsx_pci_write_register(pcr, REG_OCPCTL, mask, 0);
+ rtsx_pci_write_register(pcr, FPDCTL, OC_POWER_DOWN,
+ OC_POWER_DOWN);
+ }
}

void rtsx_pci_init_ocp(struct rtsx_pcr *pcr)
@@ -1169,7 +1188,7 @@ void rtsx_pci_init_ocp(struct rtsx_pcr *pcr)
struct rtsx_cr_option *option = &(pcr->option);

if (option->ocp_en) {
- u8 val = option->sd_400mA_ocp_thd;
+ u8 val = option->sd_800mA_ocp_thd;

rtsx_pci_write_register(pcr, FPDCTL, OC_POWER_DOWN, 0);
rtsx_pci_write_register(pcr, REG_OCPPARA1,
@@ -1204,6 +1223,7 @@ void rtsx_pci_clear_ocpstat(struct rtsx_pcr *pcr)
u8 val = SD_OCP_INT_CLR | SD_OC_CLR;

rtsx_pci_write_register(pcr, REG_OCPCTL, mask, val);
+ udelay(100);
rtsx_pci_write_register(pcr, REG_OCPCTL, mask, 0);
}
}
@@ -1213,7 +1233,6 @@ int rtsx_sd_power_off_card3v3(struct rtsx_pcr *pcr)
rtsx_pci_write_register(pcr, CARD_CLK_EN, SD_CLK_EN |
MS_CLK_EN | SD40_CLK_EN, 0);
rtsx_pci_write_register(pcr, CARD_OE, SD_OUTPUT_EN, 0);
-
rtsx_pci_card_power_off(pcr, RTSX_SD_CARD);

msleep(50);
@@ -1313,6 +1332,9 @@ static int rtsx_pci_init_hw(struct rtsx_pcr *pcr)
break;
}

+ /*init ocp*/
+ rtsx_pci_init_ocp(pcr);
+
/* Enable clk_request_n to enable clock power management */
rtsx_pci_write_config_byte(pcr, pcr->pcie_cap + PCI_EXP_LNKCTL + 1, 1);
/* Enter L1 when host tx idle */
diff --git a/drivers/misc/cardreader/rtsx_pcr.h b/drivers/misc/cardreader/rtsx_pcr.h
index 6ea1655db0bb..300fc31d8e67 100644
--- a/drivers/misc/cardreader/rtsx_pcr.h
+++ b/drivers/misc/cardreader/rtsx_pcr.h
@@ -46,6 +46,11 @@

#define SSC_CLOCK_STABLE_WAIT 130

+#define RTS524A_OCP_THD_800 0x04
+#define RTS525A_OCP_THD_800 0x05
+#define RTS522A_OCP_THD_800 0x06
+
+
int __rtsx_pci_write_phy_register(struct rtsx_pcr *pcr, u8 addr, u16 val);
int __rtsx_pci_read_phy_register(struct rtsx_pcr *pcr, u8 addr, u16 *val);

--
2.17.1