From: William Breathitt Gray <vilhelm.gray@gmail.com> To: linus.walleij@linaro.org, bgolaszewski@baylibre.com, akpm@linux-foundation.org Cc: linux-arch@vger.kernel.org, preid@electromag.com.au, yamada.masahiro@socionext.com, linux-pm@vger.kernel.org, linux@rasmusvillemoes.dk, linux-kernel@vger.kernel.org, morten.tiljeset@prevas.dk, sean.nyekjaer@prevas.dk, linux-gpio@vger.kernel.org, lukas@wunner.de, geert@linux-m68k.org, William Breathitt Gray <vilhelm.gray@gmail.com>, andriy.shevchenko@linux.intel.com, linux-arm-kernel@lists.infradead.org Subject: [PATCH v17 09/14] gpio: uniphier: Utilize for_each_set_clump8 macro Date: Wed, 9 Oct 2019 11:27:07 -0400 [thread overview] Message-ID: <271a7735b02b6a8b1f54c018e38ea932d1fd299e.1570633189.git.vilhelm.gray@gmail.com> (raw) In-Reply-To: <cover.1570633189.git.vilhelm.gray@gmail.com> Replace verbose implementation in set_multiple callback with for_each_set_clump8 macro to simplify code and improve clarity. An improvement in this case is that banks that are not masked will now be skipped. Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> --- drivers/gpio/gpio-uniphier.c | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-) diff --git a/drivers/gpio/gpio-uniphier.c b/drivers/gpio/gpio-uniphier.c index 93cdcc41e9fb..3e4b15d0231e 100644 --- a/drivers/gpio/gpio-uniphier.c +++ b/drivers/gpio/gpio-uniphier.c @@ -15,9 +15,6 @@ #include <linux/spinlock.h> #include <dt-bindings/gpio/uniphier-gpio.h> -#define UNIPHIER_GPIO_BANK_MASK \ - GENMASK((UNIPHIER_GPIO_LINES_PER_BANK) - 1, 0) - #define UNIPHIER_GPIO_IRQ_MAX_NUM 24 #define UNIPHIER_GPIO_PORT_DATA 0x0 /* data */ @@ -147,15 +144,14 @@ static void uniphier_gpio_set(struct gpio_chip *chip, static void uniphier_gpio_set_multiple(struct gpio_chip *chip, unsigned long *mask, unsigned long *bits) { - unsigned int bank, shift, bank_mask, bank_bits; - int i; + unsigned long i; + unsigned long bank_mask; + unsigned long bank; + unsigned long bank_bits; - for (i = 0; i < chip->ngpio; i += UNIPHIER_GPIO_LINES_PER_BANK) { + for_each_set_clump8(i, bank_mask, mask, chip->ngpio) { bank = i / UNIPHIER_GPIO_LINES_PER_BANK; - shift = i % BITS_PER_LONG; - bank_mask = (mask[BIT_WORD(i)] >> shift) & - UNIPHIER_GPIO_BANK_MASK; - bank_bits = bits[BIT_WORD(i)] >> shift; + bank_bits = bitmap_get_value8(bits, i); uniphier_gpio_bank_write(chip, bank, UNIPHIER_GPIO_PORT_DATA, bank_mask, bank_bits); -- 2.23.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
WARNING: multiple messages have this Message-ID (diff)
From: "William Breathitt Gray" <vilhelm.gray@gmail.com> To: "linus.walleij@linaro.org" <linus.walleij@linaro.org>, "bgolaszewski@baylibre.com" <bgolaszewski@baylibre.com>, "akpm@linux-foundation.org" <akpm@linux-foundation.org> Cc: "linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>, "preid@electromag.com.au" <preid@electromag.com.au>, "yamada.masahiro@socionext.com" <yamada.masahiro@socionext.com>, "linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>, "linux@rasmusvillemoes.dk" <linux@rasmusvillemoes.dk>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, "morten.tiljeset@prevas.dk" <morten.tiljeset@prevas.dk>, "sean.nyekjaer@prevas.dk" <sean.nyekjaer@prevas.dk>, "linux-gpio@vger.kernel.org" <linux-gpio@vger.kernel.org>, "lukas@wunner.de" <lukas@wunner.de>, "geert@linux-m68k.org" <geert@linux-m68k.org>, William Breathitt Gray <vilhelm.gray@gmail.com>, "andriy.shevchenko@linux.intel.com" <andriy.shevchenko@linux.intel.com>, "linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org> Subject: [PATCH v17 09/14] gpio: uniphier: Utilize for_each_set_clump8 macro Date: Wed, 9 Oct 2019 11:27:07 -0400 [thread overview] Message-ID: 271a7735b02b6a8b1f54c018e38ea932d1fd299e.1570633189.git.vilhelm.gray@gmail.com Message-ID: <20191009152707.sfJYubywRtReDn97o7O67fFT3_vvGqXQy763hbeSmgI@z> (raw) In-Reply-To: <cover.1570633189.git.vilhelm.gray@gmail.com> Replace verbose implementation in set_multiple callback with for_each_set_clump8 macro to simplify code and improve clarity. An improvement in this case is that banks that are not masked will now be skipped. Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> --- drivers/gpio/gpio-uniphier.c | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-) diff --git a/drivers/gpio/gpio-uniphier.c b/drivers/gpio/gpio-uniphier.c index 93cdcc41e9fb..3e4b15d0231e 100644 --- a/drivers/gpio/gpio-uniphier.c +++ b/drivers/gpio/gpio-uniphier.c @@ -15,9 +15,6 @@ #include <linux/spinlock.h> #include <dt-bindings/gpio/uniphier-gpio.h> -#define UNIPHIER_GPIO_BANK_MASK \ - GENMASK((UNIPHIER_GPIO_LINES_PER_BANK) - 1, 0) - #define UNIPHIER_GPIO_IRQ_MAX_NUM 24 #define UNIPHIER_GPIO_PORT_DATA 0x0 /* data */ @@ -147,15 +144,14 @@ static void uniphier_gpio_set(struct gpio_chip *chip, static void uniphier_gpio_set_multiple(struct gpio_chip *chip, unsigned long *mask, unsigned long *bits) { - unsigned int bank, shift, bank_mask, bank_bits; - int i; + unsigned long i; + unsigned long bank_mask; + unsigned long bank; + unsigned long bank_bits; - for (i = 0; i < chip->ngpio; i += UNIPHIER_GPIO_LINES_PER_BANK) { + for_each_set_clump8(i, bank_mask, mask, chip->ngpio) { bank = i / UNIPHIER_GPIO_LINES_PER_BANK; - shift = i % BITS_PER_LONG; - bank_mask = (mask[BIT_WORD(i)] >> shift) & - UNIPHIER_GPIO_BANK_MASK; - bank_bits = bits[BIT_WORD(i)] >> shift; + bank_bits = bitmap_get_value8(bits, i); uniphier_gpio_bank_write(chip, bank, UNIPHIER_GPIO_PORT_DATA, bank_mask, bank_bits); -- 2.23.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-10-09 15:30 UTC|newest] Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-10-09 15:26 [PATCH v17 00/14] Introduce the for_each_set_clump8 macro William Breathitt Gray 2019-10-09 15:26 ` William Breathitt Gray 2019-10-09 15:26 ` [PATCH v17 01/14] bitops: " William Breathitt Gray 2019-10-09 15:26 ` William Breathitt Gray 2019-10-09 16:28 ` Masahiro Yamada 2019-10-09 16:28 ` Masahiro Yamada 2019-10-09 17:02 ` William Breathitt Gray 2019-10-09 17:09 ` Andy Shevchenko 2019-10-09 18:54 ` Geert Uytterhoeven 2019-10-10 2:28 ` Masahiro Yamada 2019-10-10 5:49 ` Andy Shevchenko 2019-10-10 6:29 ` Geert Uytterhoeven 2019-10-10 7:41 ` Andy Shevchenko 2019-10-10 7:49 ` Geert Uytterhoeven 2019-10-10 8:07 ` Andy Shevchenko 2019-10-10 8:21 ` Geert Uytterhoeven 2019-10-10 13:12 ` William Breathitt Gray 2019-10-09 15:27 ` [PATCH v17 02/14] lib/test_bitmap.c: Add for_each_set_clump8 test cases William Breathitt Gray 2019-10-09 15:27 ` William Breathitt Gray 2019-10-09 15:27 ` [PATCH v17 03/14] gpio: 104-dio-48e: Utilize for_each_set_clump8 macro William Breathitt Gray 2019-10-09 15:27 ` [PATCH v17 04/14] gpio: 104-idi-48: " William Breathitt Gray 2019-10-09 15:27 ` William Breathitt Gray 2019-10-09 15:27 ` [PATCH v17 05/14] gpio: gpio-mm: " William Breathitt Gray 2019-10-09 15:27 ` [PATCH v17 06/14] gpio: ws16c48: " William Breathitt Gray 2019-10-09 15:27 ` [PATCH v17 07/14] gpio: pci-idio-16: " William Breathitt Gray 2019-10-09 15:27 ` William Breathitt Gray 2019-10-09 15:27 ` [PATCH v17 08/14] gpio: pcie-idio-24: " William Breathitt Gray 2019-10-09 15:27 ` William Breathitt Gray 2019-10-09 15:27 ` William Breathitt Gray [this message] 2019-10-09 15:27 ` [PATCH v17 09/14] gpio: uniphier: " William Breathitt Gray 2019-10-09 16:33 ` Masahiro Yamada 2019-10-09 16:33 ` Masahiro Yamada 2019-10-09 17:05 ` William Breathitt Gray 2019-10-09 15:27 ` [PATCH v17 10/14] gpio: 74x164: Utilize the " William Breathitt Gray 2019-10-09 15:27 ` William Breathitt Gray 2019-10-09 15:27 ` [PATCH v17 11/14] thermal: intel: intel_soc_dts_iosf: Utilize " William Breathitt Gray 2019-10-09 15:27 ` [PATCH v17 12/14] gpio: pisosr: Utilize the " William Breathitt Gray 2019-10-09 15:27 ` William Breathitt Gray 2019-10-09 15:27 ` [PATCH v17 13/14] gpio: max3191x: " William Breathitt Gray 2019-10-09 15:27 ` William Breathitt Gray 2019-10-09 15:27 ` [PATCH v17 14/14] gpio: pca953x: " William Breathitt Gray 2019-10-09 15:27 ` William Breathitt Gray
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