shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-06 10:58:48 +09:00
Code Issues Packages Projects Releases Wiki Activity

soc: rockchip: rockchip_decompress: add iommu support in non-thunder boot

Browse Source 
Change-Id: I3df03fffae564aafdc23da01cc557bd270de9897
Signed-off-by: Simon Xue <xxm@rock-chips.com>
This commit is contained in:
Simon Xue
2025-03-23 18:28:43 +08:00
committed by Tao Huang
parent 518eaa7b59
commit 6537516795
1 changed files with 31 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
drivers/soc/rockchip/rockchip_decompress.c
View File

@@ -17,6 +17,7 @@
#include <linux/reset.h>
#include <linux/soc/rockchip/rockchip_decompress.h>
#include <linux/dma-mapping.h>
#include <linux/pm_runtime.h>
#define DECOM_CTRL 0x0
#define DECOM_ENR 0x4
@@ -387,6 +388,11 @@ static int decompress_and_compare(struct rk_decom *rk_decom, int mode)
filp_close(file2, NULL);
file2 = NULL;
/* decompress of RV1126B integrate with new designed iommu which need to
* disable bypass iommu by setting the following grf register:
* io -4 0x20180014 0xffff0000
*/
ret = rk_decom_start(mode, comp_phys, decomp_phys, 0x80000000);
if (ret) {
pr_err("rk_decom_start failed[%d].", ret);
@@ -540,6 +546,10 @@ static int __init rockchip_decom_probe(struct platform_device *pdev)
g_decom = rk_dec;
wake_up(&decom_init_done);
#ifndef CONFIG_ROCKCHIP_THUNDER_BOOT
pm_runtime_enable(dev);
pm_runtime_get_sync(dev);
#endif
return 0;
disable_clk:
@@ -548,6 +558,20 @@ disable_clk:
return ret;
}
#ifndef CONFIG_ROCKCHIP_THUNDER_BOOT
static void rockchip_decom_shutdown(struct platform_device *pdev)
{
struct rk_decom *rk_dec = platform_get_drvdata(pdev);
#ifdef CONFIG_ROCKCHIP_HW_DECOMPRESS_TEST
sysfs_remove_group(&pdev->dev.kobj, &decom_attr_group);
#endif
devm_free_irq(rk_dec->dev, rk_dec->irq, rk_dec);
pm_runtime_put_sync(rk_dec->dev);
pm_runtime_disable(rk_dec->dev);
}
#endif
#ifdef CONFIG_OF
static const struct of_device_id rockchip_decom_dt_match[] = {
{ .compatible = "rockchip,hw-decompress" },
@@ -556,6 +580,10 @@ static const struct of_device_id rockchip_decom_dt_match[] = {
#endif
static struct platform_driver rk_decom_driver = {
#ifndef CONFIG_ROCKCHIP_THUNDER_BOOT
.probe = rockchip_decom_probe,
.shutdown = rockchip_decom_shutdown,
#endif
.driver = {
.name = "rockchip_hw_decompress",
.of_match_table = rockchip_decom_dt_match,
@@ -566,6 +594,9 @@ static int __init rockchip_hw_decompress_init(void)
{
struct device_node *node;
#ifndef CONFIG_ROCKCHIP_THUNDER_BOOT
return platform_driver_register(&rk_decom_driver);
#endif
node = of_find_matching_node(NULL, rockchip_decom_dt_match);
if (node) {
of_platform_device_create(node, NULL, NULL);