openwrt/target/linux/generic/pending-6.1/450-14-mmc-block-set-fwnode-of-disk-devices.patch
Daniel Golle fc153aa8d9 kernel: import pending patches adding support for NVMEM on UBI and MMC
Similar to supporting nvmem-layouts on MTD devices, also allow referencing
UBI and MMC devices in DT.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2024-02-15 19:06:36 +00:00

39 lines
1.2 KiB
Diff

From d9143f86330dd038fc48878558dd287ceee5d3d4 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Thu, 13 Jul 2023 04:13:04 +0100
Subject: [PATCH 14/15] mmc: block: set fwnode of disk devices
Set fwnode of disk devices to 'block', 'boot0' and 'boot1' subnodes of
the mmc-card. This is done in preparation for having the eMMC act as
NVMEM provider.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
drivers/mmc/core/block.c | 8 ++++++++
1 file changed, 8 insertions(+)
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -2484,6 +2484,8 @@ static struct mmc_blk_data *mmc_blk_allo
int area_type,
unsigned int part_type)
{
+ struct fwnode_handle *fwnode;
+ struct device *ddev;
struct mmc_blk_data *md;
int devidx, ret;
char cap_str[10];
@@ -2580,6 +2582,12 @@ static struct mmc_blk_data *mmc_blk_allo
blk_queue_write_cache(md->queue.queue, cache_enabled, fua_enabled);
+ ddev = disk_to_dev(md->disk);
+ fwnode = device_get_named_child_node(subname ? md->parent->parent :
+ md->parent,
+ subname ? subname : "block");
+ ddev->fwnode = fwnode;
+
string_get_size((u64)size, 512, STRING_UNITS_2,
cap_str, sizeof(cap_str));
pr_info("%s: %s %s %s %s\n",