[PATCH v4,0/4] drivers: uio: new driver uio_fsl_85xx_cache_sram

From: Wang Wenhu
Date: Thu Apr 16 2020 - 11:36:06 EST



Changes since v1:
* Addressed comments from Greg K-H
* Moved kfree(info->name) into uio_info_free_internal()

Changes since v2:
* Drop the patch that modifies Kconfigs of arch/powerpc/platforms
and modified the sequence of patches:
01:dropped, 02->03, 03->02, 04->01, 05->04
* Addressed comments from Greg, Scott and Christophe
* Use "uiomem->internal_addr" as if condition for sram memory free,
and memset the uiomem entry
* Modified of_match_table make the driver apart from Cache-Sram HW info
which belong to the HW level driver fsl_85xx_cache_sram to match
* Use roundup_pow_of_two for align calc(really learned a lot from Christophe)
* Remove useless clear block of uiomem entries.
* Use UIO_INFO_VER micro for info->version, and define it as
"devicetree,pseudo", meaning this is pseudo device and probed from
device tree configuration
* Select FSL_85XX_CACHE_SRAM rather than depends on it

Changes since v3:
* Addressed comments from Christophe(use devm_xxx memory alloc interfaces)

Wang Wenhu (4):
powerpc: sysdev: fix compile error for fsl_85xx_l2ctlr
powerpc: sysdev: fix compile error for fsl_85xx_cache_sram
powerpc: sysdev: fix compile warning for fsl_85xx_cache_sram
drivers: uio: new driver for fsl_85xx_cache_sram

arch/powerpc/sysdev/fsl_85xx_cache_sram.c | 3 +-
arch/powerpc/sysdev/fsl_85xx_l2ctlr.c | 1 +
drivers/uio/Kconfig | 9 ++
drivers/uio/Makefile | 1 +
drivers/uio/uio_fsl_85xx_cache_sram.c | 148 ++++++++++++++++++++++
5 files changed, 161 insertions(+), 1 deletion(-)
create mode 100644 drivers/uio/uio_fsl_85xx_cache_sram.c

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2.17.1