From: Adrian Hunter <adrian.hunter@intel.com>
To: Gregory CLEMENT <gregory.clement@free-electrons.com>,
Ulf Hansson <ulf.hansson@linaro.org>,
linux-mmc@vger.kernel.org
Cc: Rob Herring <robh+dt@kernel.org>,
devicetree@vger.kernel.org, Jason Cooper <jason@lakedaemon.net>,
Andrew Lunn <andrew@lunn.ch>,
Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,
linux-arm-kernel@lists.infradead.org,
Nadav Haklai <nadavh@marvell.com>, Victor Gu <xigu@marvell.com>,
Romain Perier <romain.perier@free-electrons.com>,
Omri Itach <omrii@marvell.com>, Marcin Wojtas <mw@semihalf.com>,
Wilson Ding <dingwei@marvell.com>,
Shadi Ammouri <shadi@marvell.com>
Subject: Re: [PATCH 09/12] mmc: sdhci-xenon: add initial Xenon eMMC driver
Date: Tue, 14 Jun 2016 09:52:47 +0300 [thread overview]
Message-ID: <575FA9BF.6070703@intel.com> (raw)
In-Reply-To: <1465456218-28354-10-git-send-email-gregory.clement@free-electrons.com>
On 09/06/16 10:10, Gregory CLEMENT wrote:
> From: Victor Gu <xigu@marvell.com>
>
> This path adds the driver for the Marvell Xenon eMMC host controller
> which supports eMMC 5.1, SD 3.0.
>
> However this driver supports only up to eMMC 5.0 since the command queue
> feature is not included (yet) in the driver.
>
> [gregory.clement@free-electrons.com:
> - reformulate commit log
> - overload the sdhci_set_uhs_signaling function instead of using a quirk
> - fix a kconfig dependency
> - remove dead code]
>
> Signed-off-by: Victor Gu <xigu@marvell.com>
> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
> ---
> drivers/mmc/host/Kconfig | 10 +
> drivers/mmc/host/Makefile | 1 +
> drivers/mmc/host/sdhci-xenon.c | 1164 ++++++++++++++++++++++++++++++++++++++++
> 3 files changed, 1175 insertions(+)
> create mode 100644 drivers/mmc/host/sdhci-xenon.c
>
<SNIP>
> diff --git a/drivers/mmc/host/sdhci-xenon.c b/drivers/mmc/host/sdhci-xenon.c
> new file mode 100644
> index 000000000000..43c06db95872
> --- /dev/null
> +++ b/drivers/mmc/host/sdhci-xenon.c
<SNIP>
> +static int sdhci_xenon_delay_adj_test(struct sdhci_host *host,
> + struct mmc_card *card, unsigned int delay,
> + bool invert, bool phase)
> +{
> + int ret;
> + struct mmc_card *oldcard;
> +
> + sdhci_xenon_set_fix_delay(host, delay, invert, phase);
> +
> + /*
> + * If the card is not yet associated to the host, we
> + * temporally do it
> + */
> + oldcard = card->host->card;
> + if (!oldcard)
> + card->host->card = card;
> + ret = card_alive(card);
This looks like an abuse of bus_ops->alive(). You will need to get
agreement with Ulf how to handle this. I will wait for Ulf's comments
before reviewing this patch set further.
> + card->host->card = oldcard;
> + if (ret) {
> + pr_debug("Xenon failed when sampling fix delay %d, inverted %d, phase %d\n",
> + delay, invert, phase);
> + return -EIO;
> + }
> +
> + pr_debug("Xenon succeeded when sampling fixed delay %d, inverted %d, phase %d\n",
> + delay, invert, phase);
> + return 0;
> +}
next prev parent reply other threads:[~2016-06-14 6:52 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-09 7:10 [PATCH 00/12] Add SDHCI Xenon driver Gregory CLEMENT
[not found] ` <1465456218-28354-1-git-send-email-gregory.clement-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2016-06-09 7:10 ` [PATCH 01/12] mmc: sdhci: add init_card callback to sdhci Gregory CLEMENT
2016-06-13 8:32 ` Adrian Hunter
2016-06-14 7:58 ` Gregory CLEMENT
2016-06-09 7:10 ` [PATCH 10/12] arm64: dts: marvell: add eMMC support for Armada 37xx Gregory CLEMENT
2016-06-09 7:10 ` [PATCH 02/12] mmc: sdhci_f_sdh30: restrict voltage_switch() callback to the 1.8V case Gregory CLEMENT
2016-06-09 7:10 ` [PATCH 03/12] mmc: tegra: restrict the " Gregory CLEMENT
2016-06-09 9:54 ` Lucas Stach
2016-06-09 12:27 ` Gregory CLEMENT
2016-06-09 7:10 ` [PATCH 04/12] mmc: sdhci: call voltage_switch callback also for the 3.3V case Gregory CLEMENT
2016-06-09 7:10 ` [PATCH 05/12] mmc: sdhci: add a pre voltage switch callback function Gregory CLEMENT
[not found] ` <1465456218-28354-6-git-send-email-gregory.clement-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2016-06-13 8:46 ` Adrian Hunter
[not found] ` <575E72DC.5090604-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-06-13 14:04 ` Ziji Hu
[not found] ` <D7CF8A19-9181-4A97-90AF-AC5A6517CE2B-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>
2016-06-14 7:07 ` Adrian Hunter
2016-06-14 7:59 ` Gregory CLEMENT
2016-06-09 7:10 ` [PATCH 06/12] mmc: sdhci: add delay adjust feature including phy reset Gregory CLEMENT
2016-06-09 7:10 ` [PATCH 07/12] mmc: core: export the alive operation Gregory CLEMENT
2016-06-09 7:10 ` [PATCH 08/12] dt-bindings: mmc: Add Xenon description Gregory CLEMENT
2016-06-10 14:16 ` Rob Herring
2016-06-14 8:02 ` Gregory CLEMENT
2016-06-09 7:10 ` [PATCH 09/12] mmc: sdhci-xenon: add initial Xenon eMMC driver Gregory CLEMENT
2016-06-09 13:45 ` kbuild test robot
2016-06-09 14:33 ` Gregory CLEMENT
2016-06-09 14:20 ` kbuild test robot
2016-06-09 14:54 ` Gregory CLEMENT
[not found] ` <87r3c6mmyp.fsf-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2016-06-09 21:49 ` Arnd Bergmann
2016-06-14 6:52 ` Adrian Hunter [this message]
2016-06-14 8:19 ` Gregory CLEMENT
[not found] ` <878ty8chdr.fsf-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2016-06-14 8:36 ` Adrian Hunter
2016-06-22 11:04 ` Ulf Hansson
2016-06-09 7:10 ` [PATCH 11/12] arm64: dts: marvell: add SDIO support for Armada 37xx Gregory CLEMENT
2016-06-09 7:10 ` [PATCH 12/12] arm64: defconfig: Add Xenon sdhci Gregory CLEMENT
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