diff mbox series

[v3,3/5] nvmem: core: update raw_len if the bit reading is required

Message ID 20250104-sar2130p-nvmem-v3-3-a94e0b7de2fa@linaro.org
State New
Headers show
Series nvmem: qfprom: add Qualcomm SAR2130P support | expand

Commit Message

Dmitry Baryshkov Jan. 4, 2025, 6:19 a.m. UTC 
If NVMEM cell uses bit offset or specifies bit truncation, update
raw_len manually (following the cell->bytes update), ensuring that the
NVMEM access is still word-aligned.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/nvmem/core.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index a03a3006bd611ea6e91703cd19c2842bd4f56659..17b320bcbe207aed8a32aa2cc7d8dab9b58c13cf 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -591,9 +591,11 @@  static int nvmem_cell_info_to_nvmem_cell_entry_nodup(struct nvmem_device *nvmem,
 	cell->nbits = info->nbits;
 	cell->np = info->np;
 
-	if (cell->nbits)
+	if (cell->nbits) {
 		cell->bytes = DIV_ROUND_UP(cell->nbits + cell->bit_offset,
 					   BITS_PER_BYTE);
+		cell->raw_len = ALIGN(cell->bytes, nvmem->word_size);
+	}
 
 	if (!IS_ALIGNED(cell->offset, nvmem->stride)) {
 		dev_err(&nvmem->dev,