From: Jens Kuske <jenskuske@gmail.com> To: Maxime Ripard <maxime.ripard@free-electrons.com>, Chen-Yu Tsai <wens@csie.org> Cc: Arnd Bergmann <arnd@arndb.de>, linux-sunxi@googlegroups.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] drivers: soc: sunxi: Fix mask generation for SRAM mapping Date: Wed, 27 Jan 2016 14:51:13 +0100 [thread overview] Message-ID: <1453902673-10734-1-git-send-email-jenskuske@gmail.com> (raw) GENMASK is inclusive on both ends, therefor one has to be subtracted from the width. Also fixes the mask for debug output. Signed-off-by: Jens Kuske <jenskuske@gmail.com> --- drivers/soc/sunxi/sunxi_sram.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/soc/sunxi/sunxi_sram.c b/drivers/soc/sunxi/sunxi_sram.c index bc52670..99e354c 100644 --- a/drivers/soc/sunxi/sunxi_sram.c +++ b/drivers/soc/sunxi/sunxi_sram.c @@ -117,7 +117,7 @@ static int sunxi_sram_show(struct seq_file *s, void *data) val = readl(base + sram_data->reg); val >>= sram_data->offset; - val &= sram_data->width; + val &= GENMASK(sram_data->width - 1, 0); for (func = sram_data->func; func->func; func++) { seq_printf(s, "\t\t%s%c\n", func->func, @@ -208,7 +208,8 @@ int sunxi_sram_claim(struct device *dev) return -EBUSY; } - mask = GENMASK(sram_data->offset + sram_data->width, sram_data->offset); + mask = GENMASK(sram_data->offset + sram_data->width - 1, + sram_data->offset); val = readl(base + sram_data->reg); val &= ~mask; writel(val | ((device << sram_data->offset) & mask), -- 2.7.0
WARNING: multiple messages have this Message-ID (diff)
From: jenskuske@gmail.com (Jens Kuske) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH] drivers: soc: sunxi: Fix mask generation for SRAM mapping Date: Wed, 27 Jan 2016 14:51:13 +0100 [thread overview] Message-ID: <1453902673-10734-1-git-send-email-jenskuske@gmail.com> (raw) GENMASK is inclusive on both ends, therefor one has to be subtracted from the width. Also fixes the mask for debug output. Signed-off-by: Jens Kuske <jenskuske@gmail.com> --- drivers/soc/sunxi/sunxi_sram.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/soc/sunxi/sunxi_sram.c b/drivers/soc/sunxi/sunxi_sram.c index bc52670..99e354c 100644 --- a/drivers/soc/sunxi/sunxi_sram.c +++ b/drivers/soc/sunxi/sunxi_sram.c @@ -117,7 +117,7 @@ static int sunxi_sram_show(struct seq_file *s, void *data) val = readl(base + sram_data->reg); val >>= sram_data->offset; - val &= sram_data->width; + val &= GENMASK(sram_data->width - 1, 0); for (func = sram_data->func; func->func; func++) { seq_printf(s, "\t\t%s%c\n", func->func, @@ -208,7 +208,8 @@ int sunxi_sram_claim(struct device *dev) return -EBUSY; } - mask = GENMASK(sram_data->offset + sram_data->width, sram_data->offset); + mask = GENMASK(sram_data->offset + sram_data->width - 1, + sram_data->offset); val = readl(base + sram_data->reg); val &= ~mask; writel(val | ((device << sram_data->offset) & mask), -- 2.7.0
next reply other threads:[~2016-01-27 13:51 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-01-27 13:51 Jens Kuske [this message] 2016-01-27 13:51 ` [PATCH] drivers: soc: sunxi: Fix mask generation for SRAM mapping Jens Kuske 2016-01-27 19:29 ` Maxime Ripard 2016-01-27 19:29 ` Maxime Ripard
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=1453902673-10734-1-git-send-email-jenskuske@gmail.com \ --to=jenskuske@gmail.com \ --cc=arnd@arndb.de \ --cc=linux-arm-kernel@lists.infradead.org \ --cc=linux-kernel@vger.kernel.org \ --cc=linux-sunxi@googlegroups.com \ --cc=maxime.ripard@free-electrons.com \ --cc=wens@csie.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.