From: Lucas Stach <dev@lynxeye.de>
To: barebox@lists.infradead.org
Subject: [PATCH v2 05/25] mci: tegra: add reset control
Date: Wed, 14 May 2014 22:45:32 +0200 [thread overview]
Message-ID: <1400100352-13002-5-git-send-email-dev@lynxeye.de> (raw)
In-Reply-To: <1400100352-13002-1-git-send-email-dev@lynxeye.de>
Enable the driver to reset the device itself.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
---
drivers/mci/tegra-sdmmc.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/mci/tegra-sdmmc.c b/drivers/mci/tegra-sdmmc.c
index e4d82197bde7..0ea0b5ca4a92 100644
--- a/drivers/mci/tegra-sdmmc.c
+++ b/drivers/mci/tegra-sdmmc.c
@@ -28,6 +28,7 @@
#include <mci.h>
#include <of_gpio.h>
#include <linux/clk.h>
+#include <linux/reset.h>
#include "sdhci.h"
@@ -62,6 +63,7 @@ struct tegra_sdmmc_host {
struct mci_host mci;
void __iomem *regs;
struct clk *clk;
+ struct reset_control *reset;
int gpio_cd, gpio_pwr;
};
#define to_tegra_sdmmc_host(mci) container_of(mci, struct tegra_sdmmc_host, mci)
@@ -400,6 +402,10 @@ static int tegra_sdmmc_probe(struct device_d *dev)
if (IS_ERR(host->clk))
return PTR_ERR(host->clk);
+ host->reset = reset_control_get(dev, NULL);
+ if (IS_ERR(host->reset))
+ return PTR_ERR(host->reset);
+
host->regs = dev_request_mem_region(dev, 0);
if (!host->regs) {
dev_err(dev, "could not get iomem region\n");
@@ -430,6 +436,9 @@ static int tegra_sdmmc_probe(struct device_d *dev)
}
clk_enable(host->clk);
+ reset_control_assert(host->reset);
+ udelay(2);
+ reset_control_deassert(host->reset);
mci->init = tegra_sdmmc_init;
mci->card_present = tegra_sdmmc_card_present;
--
1.9.0
_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox
next prev parent reply other threads:[~2014-05-14 20:46 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-14 20:45 [PATCH v2 01/25] reset: add reset controller framework Lucas Stach
2014-05-14 20:45 ` [PATCH v2 02/25] tegra: lowlevel: add function to fetch chipid Lucas Stach
2014-05-14 20:45 ` [PATCH v2 03/25] reset: add tegra reset controller Lucas Stach
2014-05-14 20:45 ` [PATCH v2 04/25] clk: tegra: reset UARTS from clock controller Lucas Stach
2014-05-14 20:45 ` Lucas Stach [this message]
2014-05-14 20:45 ` [PATCH v2 06/25] clk: tegra: remove device reset hack Lucas Stach
2014-05-14 20:45 ` [PATCH v2 07/25] clk: tegra: allow to register clocks with 16 bit divider Lucas Stach
2014-05-14 20:45 ` [PATCH v2 08/25] clk: tegra30: register i2c clocks Lucas Stach
2014-05-14 20:45 ` [PATCH v2 09/25] clk: tegra20: " Lucas Stach
2014-05-14 20:45 ` [PATCH v2 10/25] i2c: add Tegra driver Lucas Stach
2014-05-14 20:45 ` [PATCH v2 11/25] ARM: tegra: beaver: activate sdmmc1 voltage rail Lucas Stach
2014-05-14 20:45 ` [PATCH v2 12/25] ARM: tegra: beaver: adjust pinmux to make sdmmc1 work Lucas Stach
2014-05-14 20:45 ` [PATCH v2 13/25] mci: tegra: apply pad autocalibration on T30 Lucas Stach
2014-05-14 20:45 ` [PATCH v2 14/25] mci: tegra: don't set 8bit mode unconditionally Lucas Stach
2014-05-14 20:45 ` [PATCH v2 15/25] pinctrl: tegra30: parse drive groups Lucas Stach
2014-05-14 20:45 ` [PATCH v2 16/25] scripts: tegra: import cbootimage Lucas Stach
2014-05-14 20:45 ` [PATCH v2 17/25] tegra: cbootimage: remove noisy output Lucas Stach
2014-05-14 20:45 ` [PATCH v2 18/25] Makefile.lib: add rule to built Tegra BCTs Lucas Stach
2014-05-14 20:45 ` [PATCH v2 19/25] images: add Tegra20 image build rules Lucas Stach
2014-05-14 20:45 ` [PATCH v2 20/25] images: add Tegra30 " Lucas Stach
2014-05-14 20:45 ` [PATCH v2 21/25] ARM: boards: colibri t20: import BCT cfgs Lucas Stach
2014-05-14 20:45 ` [PATCH v2 22/25] images: tegra: build all Toradex Colibri images Lucas Stach
2014-05-14 20:45 ` [PATCH v2 23/25] ARM: boards: beaver: import BCT cfg Lucas Stach
2014-05-14 20:45 ` [PATCH v2 24/25] images: tegra: build NVidia Beaver image Lucas Stach
2014-05-14 20:45 ` [PATCH v2 25/25] images: tegra: rename ac100 image Lucas Stach
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=1400100352-13002-5-git-send-email-dev@lynxeye.de \
--to=dev@lynxeye.de \
--cc=barebox@lists.infradead.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: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox