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3 Commits

Author SHA1 Message Date
Damien Le Moal
b72de3ff19 gpio: sifive: Fix SiFive gpio probe 
Fix the check on the number of IRQs to allow up to the maximum (32)
instead of only the maximum minus one.

Fixes: 96868dce644d ("gpio/sifive: Add GPIO driver for SiFive SoCs")
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Link: https://lore.kernel.org/r/20201107081420.60325-10-damien.lemoal@wdc.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
 2020-11-11 09:53:09 +01:00
Yash Shah
a924eae751 gpio: sifive: fix static checker warning 
Typcasting "irq_state" leads to the below static checker warning:
The fix is to declare "irq_state" as unsigned long instead of u32.

	drivers/gpio/gpio-sifive.c:97 sifive_gpio_irq_enable()
	warn: passing casted pointer '&chip->irq_state' to
	'assign_bit()' 32 vs 64.

Fixes: 96868dce644d ("gpio/sifive: Add GPIO driver for SiFive SoCs")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Yash Shah <yash.shah@sifive.com>
Link: https://lore.kernel.org/r/1580189061-14091-1-git-send-email-yash.shah@sifive.com
Reviewed-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
 2020-02-10 13:54:17 +01:00
Yash Shah
96868dce64 gpio/sifive: Add GPIO driver for SiFive SoCs 
Adds the GPIO driver for SiFive RISC-V SoCs.

Signed-off-by: Wesley W. Terpstra <wesley@sifive.com>
[Atish: Various fixes and code cleanup]
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Yash Shah <yash.shah@sifive.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/1575976274-13487-6-git-send-email-yash.shah@sifive.com
 2020-01-20 19:10:03 +00:00