From: Andy Shevchenko <andy.shevchenko@gmail.com>
To: Songjun Wu <songjun.wu@linux.intel.com>
Cc: hua.ma@linux.intel.com, yixin.zhu@linux.intel.com,
chuanhua.lei@intel.com,
Linux MIPS Mailing List <linux-mips@linux-mips.org>,
qi-ming.wu@intel.com, linux-clk@vger.kernel.org,
"open list:SERIAL DRIVERS" <linux-serial@vger.kernel.org>,
devicetree <devicetree@vger.kernel.org>,
James Hogan <jhogan@kernel.org>, Jiri Slaby <jslaby@suse.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Ralf Baechle <ralf@linux-mips.org>
Subject: Re: [PATCH 4/7] tty: serial: lantiq: Always use readl()/writel()
Date: Tue, 12 Jun 2018 11:13:29 +0300 [thread overview]
Message-ID: <CAHp75Vc_EVgfj1MpuA_hKHgy6SiQdU7JQDdtVHfOT1sZ_K-nRQ@mail.gmail.com> (raw)
In-Reply-To: <20180612054034.4969-5-songjun.wu@linux.intel.com>
On Tue, Jun 12, 2018 at 8:40 AM, Songjun Wu <songjun.wu@linux.intel.com> wrote:
> Previous implementation uses platform-dependent functions
> ltq_w32()/ltq_r32() to access registers. Those functions are not
> available for other SoC which uses the same IP.
> Change to OS provided readl()/writel() and readb()/writeb(), so
> that different SoCs can use the same driver.
This patch consists 2 or even 3 ones:
- whitespace shuffling (indentation fixes, blank lines), I dunno if
it's needed at all
- some new registers / bits
- actual switch to readl() / writel()
Please, split.
> +#define asc_w32_mask(clear, set, reg) \
> + ({ typeof(reg) reg_ = (reg); \
> + writel((readl(reg_) & ~(clear)) | (set), reg_); })
This would be better as a static inline helper, and name is completely
misleading, it doesn't mask the register bits, it _updates_ them.
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2018-06-12 8:13 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-12 5:40 [PATCH 0/7] MIPS: intel: add initial support for Intel MIPS SoCs Songjun Wu
2018-06-12 5:40 ` [PATCH 1/7] MIPS: dts: Add aliases node for lantiq danube serial Songjun Wu
2018-06-12 22:24 ` Rob Herring
2018-06-14 10:03 ` Arnd Bergmann
2018-06-18 9:42 ` Wu, Songjun
2018-06-18 10:59 ` Arnd Bergmann
2018-06-19 6:46 ` Wu, Songjun
2018-06-12 5:40 ` [PATCH 2/7] clk: intel: Add clock driver for GRX500 SoC Songjun Wu
2018-06-12 22:37 ` Rob Herring
2018-06-14 8:40 ` yixin zhu
2018-06-14 14:09 ` Rob Herring
2018-06-18 10:05 ` yixin zhu
2018-06-12 5:40 ` [PATCH 3/7] MIPS: intel: Add initial support for Intel MIPS SoCs Songjun Wu
2018-06-12 11:23 ` James Hogan
2018-06-14 9:24 ` yixin zhu
2018-06-12 22:31 ` Rob Herring
2018-06-14 8:01 ` Hua Ma
2018-06-12 5:40 ` [PATCH 4/7] tty: serial: lantiq: Always use readl()/writel() Songjun Wu
2018-06-12 8:13 ` Andy Shevchenko [this message]
2018-06-14 7:05 ` Wu, Songjun
2018-06-14 10:07 ` Arnd Bergmann
2018-06-18 9:39 ` Wu, Songjun
2018-06-18 11:52 ` Arnd Bergmann
2018-06-12 5:40 ` [PATCH 5/7] tty: serial: lantiq: Convert global lock to per device lock Songjun Wu
2018-06-12 5:40 ` [PATCH 6/7] tty: serial: lantiq: Remove unneeded header includes and macros Songjun Wu
2018-06-12 5:40 ` [PATCH 7/7] tty: serial: lantiq: Add CCF support Songjun Wu
2018-06-12 8:07 ` kbuild test robot
2018-06-12 22:39 ` Rob Herring
2018-06-14 6:38 ` Wu, Songjun
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