From 992ba3f7b87df3a130c0de315983ee53191290d2 Mon Sep 17 00:00:00 2001 From: Srinivas Kandagatla Date: Fri, 22 May 2020 12:33:41 +0100 Subject: [PATCH] nvmem: qfprom: remove incorrect write support commit 8d9eb0d6d59a5d7028c80a30831143d3e75515a7 upstream. qfprom has different address spaces for read and write. Reads are always done from corrected address space, where as writes are done on raw address space. Writing to corrected address space is invalid and ignored, so it does not make sense to have this support in the driver which only supports corrected address space regions at the moment. Fixes: 4ab11996b489 ("nvmem: qfprom: Add Qualcomm QFPROM support.") Signed-off-by: Srinivas Kandagatla Reviewed-by: Douglas Anderson Cc: stable Link: https://lore.kernel.org/r/20200522113341.7728-1-srinivas.kandagatla@linaro.org Signed-off-by: Greg Kroah-Hartman --- drivers/nvmem/qfprom.c | 14 -------------- 1 file changed, 14 deletions(-) diff --git a/drivers/nvmem/qfprom.c b/drivers/nvmem/qfprom.c index 2bdb6c389328..d3e08496e49b 100644 --- a/drivers/nvmem/qfprom.c +++ b/drivers/nvmem/qfprom.c @@ -30,19 +30,6 @@ static int qfprom_reg_read(void *context, return 0; } -static int qfprom_reg_write(void *context, - unsigned int reg, void *_val, size_t bytes) -{ - void __iomem *base = context; - u8 *val = _val; - int i = 0, words = bytes; - - while (words--) - writeb(*val++, base + reg + i++); - - return 0; -} - static int qfprom_remove(struct platform_device *pdev) { struct nvmem_device *nvmem = platform_get_drvdata(pdev); @@ -56,7 +43,6 @@ static struct nvmem_config econfig = { .stride = 1, .word_size = 1, .reg_read = qfprom_reg_read, - .reg_write = qfprom_reg_write, }; static int qfprom_probe(struct platform_device *pdev) -- 2.20.1