summaryrefslogtreecommitdiff
path: root/drivers/mmc/core
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2025-12-04 14:10:16 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2025-12-04 14:10:16 -0800
commitdd463c51a327d341d3ece63dd50e1a0f8f09c468 (patch)
tree670d0d6d7e34a3531df677420885741d009fb4e7 /drivers/mmc/core
parent52206f82d9244546e5790f5ad64465343aa7ffd5 (diff)
parent79cf71c0b177c0e23d411e2469435e2c2f83f563 (diff)
Merge tag 'mmc-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC updates from Ulf Hansson: "MMC core: - Allow more host caps to be modified through debugfs - Skip to set the default 200mA SD current limit MMC host: - Convert a few more DT bindings to the DT schema - dw_mmc: Add Shawn Lin as co-maintainer for the dw_mmc drivers - dw_mmc-rockchip: - Add memory clock auto-gating support - Add support for the RK3506 variant - meson-mx-sdio: - Ignore disabled "mmc-slot" child-nodes - Refactoring and general code improvements - renesas_sdhi: - Enable bigger data ports where available - Manage reset in probe and during system-wide suspend/resume - sdhci-brcmstb: - Add support for the BCM72116 and BCM74371 variants - Save/restore registers during system-wide suspend/resume - sdhci-msm: - Add support for the sm8750 and the Kaanapali variants - Avoid early clock doubling during HS400 transition - sdhci-of-dwcmshc: - Add command queue support for Rockchip SOCs - Add support for the Eswin EIC7700 variant" * tag 'mmc-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (40 commits) mmc: sdhci-of-dwcmshc: reduce CIT for better performance mmc: sdhci-of-dwcmshc: Disable internal clock auto gate for Rockchip SOCs mmc: sdhci-msm: Avoid early clock doubling during HS400 transition MAINTAINERS: Add Shawn Lin as co-maintainer for dw_mmc drivers mmc: sdhci-of-dwcmshc: Fix command queue support for RK3576 mmc: renesas_sdhi: Add suspend/resume hooks mmc: renesas_sdhi: Switch to SYSTEM_SLEEP_PM_OPS()/RUNTIME_PM_OPS() and pm_ptr() mmc: renesas_sdhi: Deassert the reset signal on probe dt-bindings: mmc: am654: Simplify dma-coherent property mmc: meson-mx-sdio: Ignore disabled "mmc-slot" child-nodes mmc: meson-mx-sdio: Fix indentation in meson_mx_mmc_irq_thread() mmc: meson-mx-sdio: Use dev_err_probe() where appropriate mmc: meson-mx-sdio: Use devm_mmc_alloc_host() helper mmc: meson-mx-sdio: Refactor internal clock initialization mmc: meson-mx-sdio: Use devm_clk_get_enabled() mmc: meson-mx-sdio: Switch to regmap for register access mmc: core: add WQ_PERCPU to alloc_workqueue users mmc: dw_mmc-rockchip: Add memory clock auto-gating support mmc: omap: add WQ_PERCPU to alloc_workqueue users mmc: mtk-sd: replace use of system_wq with system_percpu_wq ...
Diffstat (limited to 'drivers/mmc/core')
-rw-r--r--drivers/mmc/core/block.c14
-rw-r--r--drivers/mmc/core/bus.h2
-rw-r--r--drivers/mmc/core/debugfs.c10
-rw-r--r--drivers/mmc/core/mmc.c4
-rw-r--r--drivers/mmc/core/mmc_test.c4
-rw-r--r--drivers/mmc/core/sd.c9
6 files changed, 22 insertions, 21 deletions
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index c0ffe0817fd4..fb6eb2d79b4f 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -349,10 +349,10 @@ static umode_t mmc_disk_attrs_is_visible(struct kobject *kobj,
if (a == &dev_attr_ro_lock_until_next_power_on.attr &&
(md->area_type & MMC_BLK_DATA_AREA_BOOT) &&
md->queue.card->ext_csd.boot_ro_lockable) {
- mode = S_IRUGO;
+ mode = 0444;
if (!(md->queue.card->ext_csd.boot_ro_lock &
EXT_CSD_BOOT_WP_B_PWR_WP_DIS))
- mode |= S_IWUSR;
+ mode |= 0200;
}
mmc_blk_put(md);
@@ -957,7 +957,6 @@ static int mmc_sd_num_wr_blocks(struct mmc_card *card, u32 *written_blocks)
u32 result;
__be32 *blocks;
u8 resp_sz = mmc_card_ult_capacity(card) ? 8 : 4;
- unsigned int noio_flag;
struct mmc_request mrq = {};
struct mmc_command cmd = {};
@@ -982,9 +981,7 @@ static int mmc_sd_num_wr_blocks(struct mmc_card *card, u32 *written_blocks)
mrq.cmd = &cmd;
mrq.data = &data;
- noio_flag = memalloc_noio_save();
- blocks = kmalloc(resp_sz, GFP_KERNEL);
- memalloc_noio_restore(noio_flag);
+ blocks = kmalloc(resp_sz, GFP_NOIO);
if (!blocks)
return -ENOMEM;
@@ -3194,7 +3191,7 @@ static void mmc_blk_add_debugfs(struct mmc_card *card, struct mmc_blk_data *md)
if (mmc_card_mmc(card)) {
md->ext_csd_dentry =
- debugfs_create_file("ext_csd", S_IRUSR, root, card,
+ debugfs_create_file("ext_csd", 0400, root, card,
&mmc_dbg_ext_csd_fops);
}
}
@@ -3275,7 +3272,8 @@ static int mmc_blk_probe(struct mmc_card *card)
mmc_fixup_device(card, mmc_blk_fixups);
card->complete_wq = alloc_workqueue("mmc_complete",
- WQ_MEM_RECLAIM | WQ_HIGHPRI, 0);
+ WQ_MEM_RECLAIM | WQ_HIGHPRI | WQ_PERCPU,
+ 0);
if (!card->complete_wq) {
pr_err("Failed to create mmc completion workqueue");
return -ENOMEM;
diff --git a/drivers/mmc/core/bus.h b/drivers/mmc/core/bus.h
index cfd0d02d3420..8b69624fa46e 100644
--- a/drivers/mmc/core/bus.h
+++ b/drivers/mmc/core/bus.h
@@ -20,7 +20,7 @@ static ssize_t mmc_##name##_show (struct device *dev, struct device_attribute *a
struct mmc_card *card = mmc_dev_to_card(dev); \
return sysfs_emit(buf, fmt, args); \
} \
-static DEVICE_ATTR(name, S_IRUGO, mmc_##name##_show, NULL)
+static DEVICE_ATTR(name, 0444, mmc_##name##_show, NULL)
struct mmc_card *mmc_alloc_card(struct mmc_host *host,
const struct device_type *type);
diff --git a/drivers/mmc/core/debugfs.c b/drivers/mmc/core/debugfs.c
index f10a4dcf1f95..91ea00a0f61d 100644
--- a/drivers/mmc/core/debugfs.c
+++ b/drivers/mmc/core/debugfs.c
@@ -315,7 +315,10 @@ static int mmc_caps_set(void *data, u64 val)
MMC_CAP_SD_HIGHSPEED |
MMC_CAP_MMC_HIGHSPEED |
MMC_CAP_UHS |
- MMC_CAP_DDR;
+ MMC_CAP_DDR |
+ MMC_CAP_4_BIT_DATA |
+ MMC_CAP_8_BIT_DATA |
+ MMC_CAP_CMD23;
if (diff & ~allowed)
return -EINVAL;
@@ -327,7 +330,10 @@ static int mmc_caps_set(void *data, u64 val)
static int mmc_caps2_set(void *data, u64 val)
{
- u32 allowed = MMC_CAP2_HSX00_1_8V | MMC_CAP2_HSX00_1_2V;
+ u32 allowed = MMC_CAP2_HSX00_1_8V |
+ MMC_CAP2_HSX00_1_2V |
+ MMC_CAP2_CQE |
+ MMC_CAP2_CQE_DCMD;
u32 *caps = data;
u32 diff = *caps ^ val;
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 3e7d9437477c..7c86efb1044a 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -831,7 +831,7 @@ static ssize_t mmc_fwrev_show(struct device *dev,
card->ext_csd.fwrev);
}
-static DEVICE_ATTR(fwrev, S_IRUGO, mmc_fwrev_show, NULL);
+static DEVICE_ATTR(fwrev, 0444, mmc_fwrev_show, NULL);
static ssize_t mmc_dsr_show(struct device *dev,
struct device_attribute *attr,
@@ -847,7 +847,7 @@ static ssize_t mmc_dsr_show(struct device *dev,
return sysfs_emit(buf, "0x%x\n", 0x404);
}
-static DEVICE_ATTR(dsr, S_IRUGO, mmc_dsr_show, NULL);
+static DEVICE_ATTR(dsr, 0444, mmc_dsr_show, NULL);
static struct attribute *mmc_std_attrs[] = {
&dev_attr_cid.attr,
diff --git a/drivers/mmc/core/mmc_test.c b/drivers/mmc/core/mmc_test.c
index d59b5e5a7b45..01d1e62c2ce7 100644
--- a/drivers/mmc/core/mmc_test.c
+++ b/drivers/mmc/core/mmc_test.c
@@ -3208,12 +3208,12 @@ static int mmc_test_register_dbgfs_file(struct mmc_card *card)
mutex_lock(&mmc_test_lock);
- ret = __mmc_test_register_dbgfs_file(card, "test", S_IWUSR | S_IRUGO,
+ ret = __mmc_test_register_dbgfs_file(card, "test", 0644,
&mmc_test_fops_test);
if (ret)
goto err;
- ret = __mmc_test_register_dbgfs_file(card, "testlist", S_IRUGO,
+ ret = __mmc_test_register_dbgfs_file(card, "testlist", 0444,
&mtf_testlist_fops);
if (ret)
goto err;
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index 67cd63004829..948948ca9b4a 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -554,7 +554,7 @@ static u32 sd_get_host_max_current(struct mmc_host *host)
static int sd_set_current_limit(struct mmc_card *card, u8 *status)
{
- int current_limit = SD_SET_CURRENT_NO_CHANGE;
+ int current_limit = SD_SET_CURRENT_LIMIT_200;
int err;
u32 max_current;
@@ -598,11 +598,8 @@ static int sd_set_current_limit(struct mmc_card *card, u8 *status)
else if (max_current >= 400 &&
card->sw_caps.sd3_curr_limit & SD_MAX_CURRENT_400)
current_limit = SD_SET_CURRENT_LIMIT_400;
- else if (max_current >= 200 &&
- card->sw_caps.sd3_curr_limit & SD_MAX_CURRENT_200)
- current_limit = SD_SET_CURRENT_LIMIT_200;
- if (current_limit != SD_SET_CURRENT_NO_CHANGE) {
+ if (current_limit != SD_SET_CURRENT_LIMIT_200) {
err = mmc_sd_switch(card, SD_SWITCH_SET, 3,
current_limit, status);
if (err)
@@ -744,7 +741,7 @@ static ssize_t mmc_dsr_show(struct device *dev, struct device_attribute *attr,
return sysfs_emit(buf, "0x%x\n", 0x404);
}
-static DEVICE_ATTR(dsr, S_IRUGO, mmc_dsr_show, NULL);
+static DEVICE_ATTR(dsr, 0444, mmc_dsr_show, NULL);
MMC_DEV_ATTR(vendor, "0x%04x\n", card->cis.vendor);
MMC_DEV_ATTR(device, "0x%04x\n", card->cis.device);