From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sourav Poddar Subject: [PATCH 08/17] spi/qspi: Add api for get_buf/put_buf. Date: Tue, 26 Nov 2013 13:05:04 +0530 Message-ID: <1385451313-1875-9-git-send-email-sourav.poddar@ti.com> References: <1385451313-1875-1-git-send-email-sourav.poddar@ti.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1385451313-1875-1-git-send-email-sourav.poddar-l0cyMroinI0@public.gmane.org> Sender: linux-spi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: computersforpeace-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, linux-mtd-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: balbi-l0cyMroinI0@public.gmane.org, linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, bcousson-rdvid1DuHRBWk0Htik3J/w@public.gmane.org, Sourav Poddar List-Id: devicetree@vger.kernel.org Adapt qspi driver to use (get_buf/put_buf) pointers added earlier. These can be called just before the memcpy operations to get hold of the memory mapped address and to turn on the controller clocks. Signed-off-by: Sourav Poddar --- drivers/spi/spi-ti-qspi.c | 17 +++++++++++++++++ 1 files changed, 17 insertions(+), 0 deletions(-) diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c index 2323572..10bcb37 100644 --- a/drivers/spi/spi-ti-qspi.c +++ b/drivers/spi/spi-ti-qspi.c @@ -247,6 +247,21 @@ static void ti_qspi_configure_from_slave(struct spi_device *spi, u8 *val) ti_qspi_write(qspi, memval, QSPI_SPI_SETUP0_REG); } +static void ti_qspi_get_mem_buf(struct spi_master *master) +{ + struct ti_qspi *qspi = spi_master_get_devdata(master); + + pm_runtime_get_sync(qspi->dev); + master->mem = qspi->mmap_base; +} + +static void ti_qspi_put_mem_buf(struct spi_master *master) +{ + struct ti_qspi *qspi = spi_master_get_devdata(master); + + pm_runtime_put(qspi->dev); +} + static void ti_qspi_restore_ctx(struct ti_qspi *qspi) { struct ti_qspi_regs *ctx_reg = &qspi->ctx_reg; @@ -515,6 +530,8 @@ static int ti_qspi_probe(struct platform_device *pdev) master->dev.of_node = pdev->dev.of_node; master->bits_per_word_mask = BIT(32 - 1) | BIT(16 - 1) | BIT(8 - 1); master->configure_from_slave = ti_qspi_configure_from_slave; + master->get_buf = ti_qspi_get_mem_buf; + master->put_buf = ti_qspi_put_mem_buf; if (!of_property_read_u32(np, "num-cs", &num_cs)) master->num_chipselect = num_cs; -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-spi" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html