[0/9] spi: spi-sun6i: One fix and some improvements

Message ID	20200706071801.558394-1-mkl@pengutronix.de (mailing list archive)
Headers	show Return-Path: <SRS0=fYXv=AR=vger.kernel.org=linux-spi-owner@kernel.org> From: Marc Kleine-Budde <mkl@pengutronix.de> To: Mark Brown <broonie@kernel.org> Cc: Maxime Ripard <mripard@kernel.org>, Chen-Yu Tsai <wens@csie.org>, linux-spi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de Subject: [PATCH 0/9] spi: spi-sun6i: One fix and some improvements Date: Mon, 6 Jul 2020 09:17:52 +0200 Message-Id: <20200706071801.558394-1-mkl@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-spi-owner@vger.kernel.org Precedence: bulk
Series	spi: spi-sun6i: One fix and some improvements \| expand [0/9] spi: spi-sun6i: One fix and some improvements [1/9] spi: spi-sun6i: sun6i_spi_transfer_one(): fix setting of clock rate [2/9] spi: spi-sun6i: sun6i_spi_transfer_one(): report effectivly used speed_hz of transfer [3/9] spi: spi-sun6i: sun6i_spi_transfer_one(): remove useless goto [4/9] spi: spi-sun6i: sun6i_spi_transfer_one(): remove not needed masking of transfer length [5/9] spi: spi-sun6i: sun6i_spi_drain_fifo(): introduce sun6i_spi_get_rx_fifo_count() and make use … [6/9] spi: spi-sun6i: sun6i_spi_drain_fifo(): remove not needed length argument [7/9] spi: spi-sun6i: sun6i_spi_fill_fifo(): remove not needed length argument [8/9] spi: spi-sun6i: sun6i_spi_transfer_one(): collate write to Interrupt Control Register [9/9] spi: spi-sun6i: sun6i_spi_transfer_one(): enable RF_RDY interrupt only if needed

Message ID

20200706071801.558394-1-mkl@pengutronix.de (mailing list archive)

Headers

From: Marc Kleine-Budde <mkl@pengutronix.de>
To: Mark Brown <broonie@kernel.org>
Cc: Maxime Ripard <mripard@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
        linux-spi@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        kernel@pengutronix.de
Subject: [PATCH 0/9] spi: spi-sun6i: One fix and some improvements
Date: Mon,  6 Jul 2020 09:17:52 +0200
Message-Id: <20200706071801.558394-1-mkl@pengutronix.de>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Sender: linux-spi-owner@vger.kernel.org
Precedence: bulk

Series

spi: spi-sun6i: One fix and some improvements | expand

Message

Marc Kleine-Budde July 6, 2020, 7:17 a.m. UTC

Hello,

this series first fixes the calculation of the clock rate. The driver will
round up to the nearest clock rate instead of rounding down. Resulting in SPI
devices accessed with a too high SPI clock.

The remaining patches improve the performance of the driver. The changes range
from micro-optimizations like reducing MMIO writes to the controller to
reducing the number of needed interrupts in some use cases.

regards,
Marc

Comments

Maxime Ripard July 6, 2020, 12:43 p.m. UTC | #1

On Mon, Jul 06, 2020 at 09:17:52AM +0200, Marc Kleine-Budde wrote:
> Hello,
> 
> this series first fixes the calculation of the clock rate. The driver will
> round up to the nearest clock rate instead of rounding down. Resulting in SPI
> devices accessed with a too high SPI clock.
> 
> The remaining patches improve the performance of the driver. The changes range
> from micro-optimizations like reducing MMIO writes to the controller to
> reducing the number of needed interrupts in some use cases.

Thanks for that work. Aside from the minor comment over FIELD_GET, the
whole series is

Acked-by: Maxime Ripard <mripard@kernel.org>

Maxime