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media: staging: atomisp: Move to upstream IOSF MBI API

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There is a common for x86 IOSF MBI API. Move atomisp code to use it.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Andy Shevchenko 2017-09-01 09:36:38 -04:00 committed by Mauro Carvalho Chehab
parent e64d5bd481
commit 66228be9ff
3 changed files with 29 additions and 30 deletions
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1
drivers/staging/media/atomisp/pci/Kconfig
View file

@ -5,6 +5,7 @@
config VIDEO_ATOMISP
tristate "Intel Atom Image Signal Processor Driver"
depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
select IOSF_MBI
select VIDEOBUF_VMALLOC
---help---
Say Y here if your platform supports Intel Atom SoC

20
drivers/staging/media/atomisp/pci/atomisp2/atomisp_cmd.c
View file

@ -27,7 +27,9 @@
#include <linux/kfifo.h>
#include <linux/pm_runtime.h>
#include <linux/timer.h>
#include <asm/intel-mid.h>
#include <asm/iosf_mbi.h>
#include <media/v4l2-event.h>
#include <media/videobuf-vmalloc.h>
@ -143,36 +145,36 @@ static int write_target_freq_to_hw(struct atomisp_device *isp,
unsigned int ratio, timeout, guar_ratio;
u32 isp_sspm1 = 0;
int i;
if (!isp->hpll_freq) {
dev_err(isp->dev, "failed to get hpll_freq. no change to freq\n");
return -EINVAL;
}
isp_sspm1 = intel_mid_msgbus_read32(PUNIT_PORT, ISPSSPM1);
iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, ISPSSPM1, &isp_sspm1);
if (isp_sspm1 & ISP_FREQ_VALID_MASK) {
dev_dbg(isp->dev, "clearing ISPSSPM1 valid bit.\n");
intel_mid_msgbus_write32(PUNIT_PORT, ISPSSPM1,
iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE, ISPSSPM1,
isp_sspm1 & ~(1 << ISP_FREQ_VALID_OFFSET));
}
ratio = (2 * isp->hpll_freq + new_freq / 2) / new_freq - 1;
guar_ratio = (2 * isp->hpll_freq + 200 / 2) / 200 - 1;
isp_sspm1 = intel_mid_msgbus_read32(PUNIT_PORT, ISPSSPM1);
iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, ISPSSPM1, &isp_sspm1);
isp_sspm1 &= ~(0x1F << ISP_REQ_FREQ_OFFSET);
for (i = 0; i < ISP_DFS_TRY_TIMES; i++) {
intel_mid_msgbus_write32(PUNIT_PORT, ISPSSPM1,
iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE, ISPSSPM1,
isp_sspm1
| ratio << ISP_REQ_FREQ_OFFSET
| 1 << ISP_FREQ_VALID_OFFSET
| guar_ratio << ISP_REQ_GUAR_FREQ_OFFSET);
isp_sspm1 = intel_mid_msgbus_read32(PUNIT_PORT, ISPSSPM1);
iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, ISPSSPM1, &isp_sspm1);
timeout = 20;
while ((isp_sspm1 & ISP_FREQ_VALID_MASK) && timeout) {
isp_sspm1 = intel_mid_msgbus_read32(PUNIT_PORT, ISPSSPM1);
iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, ISPSSPM1, &isp_sspm1);
dev_dbg(isp->dev, "waiting for ISPSSPM1 valid bit to be 0.\n");
udelay(100);
timeout--;
@ -187,10 +189,10 @@ static int write_target_freq_to_hw(struct atomisp_device *isp,
return -EINVAL;
}
isp_sspm1 = intel_mid_msgbus_read32(PUNIT_PORT, ISPSSPM1);
iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, ISPSSPM1, &isp_sspm1);
timeout = 10;
while (((isp_sspm1 >> ISP_FREQ_STAT_OFFSET) != ratio) && timeout) {
isp_sspm1 = intel_mid_msgbus_read32(PUNIT_PORT, ISPSSPM1);
iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, ISPSSPM1, &isp_sspm1);
dev_dbg(isp->dev, "waiting for ISPSSPM1 status bit to be 0x%x.\n",
new_freq);
udelay(100);

38
drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c
View file

@ -28,6 +28,9 @@
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <asm/intel-mid.h>
#include <asm/iosf_mbi.h>
#include "../../include/linux/atomisp_gmin_platform.h"
#include "atomisp_cmd.h"
@ -46,7 +49,6 @@
#include "hrt/hive_isp_css_mm_hrt.h"
#include "device_access.h"
#include <asm/intel-mid.h>
/* G-Min addition: pull this in from intel_mid_pm.h */
#define CSTATE_EXIT_LATENCY_C1 1
@ -386,28 +388,23 @@ static int atomisp_mrfld_pre_power_down(struct atomisp_device *isp)
*/
static void punit_ddr_dvfs_enable(bool enable)
{
int reg = intel_mid_msgbus_read32(PUNIT_PORT, MRFLD_ISPSSDVFS);
int door_bell = 1 << 8;
int max_wait = 30;
int reg;
iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, MRFLD_ISPSSDVFS, &reg);
if (enable) {
reg &= ~(MRFLD_BIT0 | MRFLD_BIT1);
} else {
reg |= (MRFLD_BIT1 | door_bell);
reg &= ~(MRFLD_BIT0);
}
iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE, MRFLD_ISPSSDVFS, reg);
intel_mid_msgbus_write32(PUNIT_PORT, MRFLD_ISPSSDVFS, reg);
/*Check Req_ACK to see freq status, wait until door_bell is cleared*/
if (reg & door_bell) {
while (max_wait--) {
if (0 == (intel_mid_msgbus_read32(PUNIT_PORT,
MRFLD_ISPSSDVFS) & door_bell))
break;
usleep_range(100, 500);
}
/* Check Req_ACK to see freq status, wait until door_bell is cleared */
while ((reg & door_bell) && max_wait--) {
iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, MRFLD_ISPSSDVFS, &reg);
usleep_range(100, 500);
}
if (max_wait == -1)
@ -421,10 +418,10 @@ int atomisp_mrfld_power_down(struct atomisp_device *isp)
u32 reg_value;
/* writing 0x3 to ISPSSPM0 bit[1:0] to power off the IUNIT */
reg_value = intel_mid_msgbus_read32(PUNIT_PORT, MRFLD_ISPSSPM0);
iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, MRFLD_ISPSSPM0, &reg_value);
reg_value &= ~MRFLD_ISPSSPM0_ISPSSC_MASK;
reg_value |= MRFLD_ISPSSPM0_IUNIT_POWER_OFF;
intel_mid_msgbus_write32(PUNIT_PORT, MRFLD_ISPSSPM0, reg_value);
iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE, MRFLD_ISPSSPM0, reg_value);
/*WA:Enable DVFS*/
if (IS_CHT)
@ -437,8 +434,7 @@ int atomisp_mrfld_power_down(struct atomisp_device *isp)
*/
timeout = jiffies + msecs_to_jiffies(50);
while (1) {
reg_value = intel_mid_msgbus_read32(PUNIT_PORT,
MRFLD_ISPSSPM0);
iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, MRFLD_ISPSSPM0, &reg_value);
dev_dbg(isp->dev, "power-off in progress, ISPSSPM0: 0x%x\n",
reg_value);
/* wait until ISPSSPM0 bit[25:24] shows 0x3 */
@ -477,14 +473,14 @@ int atomisp_mrfld_power_up(struct atomisp_device *isp)
msleep(10);
/* writing 0x0 to ISPSSPM0 bit[1:0] to power off the IUNIT */
reg_value = intel_mid_msgbus_read32(PUNIT_PORT, MRFLD_ISPSSPM0);
iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, MRFLD_ISPSSPM0, &reg_value);
reg_value &= ~MRFLD_ISPSSPM0_ISPSSC_MASK;
intel_mid_msgbus_write32(PUNIT_PORT, MRFLD_ISPSSPM0, reg_value);
iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE, MRFLD_ISPSSPM0, reg_value);
/* FIXME: experienced value for delay */
timeout = jiffies + msecs_to_jiffies(50);
while (1) {
reg_value = intel_mid_msgbus_read32(PUNIT_PORT, MRFLD_ISPSSPM0);
iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ, MRFLD_ISPSSPM0, &reg_value);
dev_dbg(isp->dev, "power-on in progress, ISPSSPM0: 0x%x\n",
reg_value);
/* wait until ISPSSPM0 bit[25:24] shows 0x0 */
@ -1323,7 +1319,7 @@ static int atomisp_pci_probe(struct pci_dev *dev,
isp->dfs = &dfs_config_cht;
isp->pdev->d3cold_delay = 0;
val = intel_mid_msgbus_read32(CCK_PORT, CCK_FUSE_REG_0);
iosf_mbi_read(CCK_PORT, MBI_REG_READ, CCK_FUSE_REG_0, &val);
switch (val & CCK_FUSE_HPLL_FREQ_MASK) {
case 0x00:
isp->hpll_freq = HPLL_FREQ_800MHZ;