linux-kernel - Re: [PATCH v2] mmc: mmci_qcom_dml: include mmci_qcom

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Date:   Sun, 6 Aug 2017 11:26:53 +0100
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     Arnd Bergmann <arnd@...db.de>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc:     linux-mmc@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Stephen Boyd <sboyd@...eaurora.org>,
        Russell King - ARM Linux <linux@...linux.org.uk>
Subject: Re: [PATCH v2] mmc: mmci_qcom_dml: include mmci_qcom_dml.h and fix
 #ifdef



On 04/08/17 23:10, Arnd Bergmann wrote:
> How about linking the DML code into the mmci module and making that
> Kconfig option a 'bool'?


Yes, I think making this bool and exporting the two symbols should fix 
this. It does not make sense to make dml helpers a module anyway.

If it sounds okay, I can send a proper patch to fix this.

------------------------>cut<-----------------------------------

diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 5755b69..3345384 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -15,7 +15,7 @@ config MMC_ARMMMCI
           If unsure, say N.

  config MMC_QCOM_DML
-       tristate "Qualcomm Data Mover for SD Card Controller"
+       bool "Qualcomm Data Mover for SD Card Controller"
         depends on MMC_ARMMMCI && QCOM_BAM_DMA
         default y
         help
diff --git a/drivers/mmc/host/mmci_qcom_dml.c 
b/drivers/mmc/host/mmci_qcom_dml.c
index 00750c9..e7d9c74 100644
--- a/drivers/mmc/host/mmci_qcom_dml.c
+++ b/drivers/mmc/host/mmci_qcom_dml.c
@@ -97,6 +97,7 @@ void dml_start_xfer(struct mmci_host *host, struct 
mmc_data *data)
         /* make sure the dml is configured before dma is triggered */
         wmb();
  }
+EXPORT_SYMBOL_GPL(dml_start_xfer);

  static int of_get_dml_pipe_index(struct device_node *np, const char *name)
  {
@@ -175,3 +176,4 @@ int dml_hw_init(struct mmci_host *host, struct 
device_node *np)

         return 0;
------------------------>cut<-----------------------------------


thanks,
srini