[PATCH] phy: qcom-ufs: export symbols needed by main drivers
ygardi at codeaurora.org
ygardi at codeaurora.org
Mon Feb 2 06:31:59 PST 2015
> The qcom ufs phy support is split into three separate loadable
> modules, however none of the interfaces are exported, resulting
> in a link error:
>
> ERROR: "ufs_qcom_phy_power_off" [drivers/phy/phy-qcom-ufs-qmp-20nm.ko]
> undefined!
> ERROR: "ufs_qcom_phy_power_on" [drivers/phy/phy-qcom-ufs-qmp-20nm.ko]
> undefined!
> ERROR: "ufs_qcom_phy_exit" [drivers/phy/phy-qcom-ufs-qmp-20nm.ko]
> undefined!
> ERROR: "ufs_qcom_phy_generic_probe" [drivers/phy/phy-qcom-ufs-qmp-20nm.ko]
> undefined!
> ERROR: "ufs_qcom_phy_init_vregulators"
> [drivers/phy/phy-qcom-ufs-qmp-20nm.ko] undefined!
> ERROR: "ufs_qcom_phy_init_clks" [drivers/phy/phy-qcom-ufs-qmp-20nm.ko]
> undefined!
> ERROR: "ufs_qcom_phy_calibrate" [drivers/phy/phy-qcom-ufs-qmp-20nm.ko]
> undefined!
> ERROR: "ufs_qcom_phy_remove" [drivers/phy/phy-qcom-ufs-qmp-20nm.ko]
> undefined!
> ERROR: "get_ufs_qcom_phy" [drivers/phy/phy-qcom-ufs-qmp-20nm.ko]
> undefined!
> ERROR: "ufs_qcom_phy_power_off" [drivers/phy/phy-qcom-ufs-qmp-14nm.ko]
> undefined!
> ERROR: "ufs_qcom_phy_power_on" [drivers/phy/phy-qcom-ufs-qmp-14nm.ko]
> undefined!
> ERROR: "ufs_qcom_phy_exit" [drivers/phy/phy-qcom-ufs-qmp-14nm.ko]
> undefined!
> ERROR: "ufs_qcom_phy_generic_probe" [drivers/phy/phy-qcom-ufs-qmp-14nm.ko]
> undefined!
> ERROR: "ufs_qcom_phy_init_vregulators"
> [drivers/phy/phy-qcom-ufs-qmp-14nm.ko] undefined!
> ERROR: "ufs_qcom_phy_init_clks" [drivers/phy/phy-qcom-ufs-qmp-14nm.ko]
> undefined!
> ERROR: "ufs_qcom_phy_calibrate" [drivers/phy/phy-qcom-ufs-qmp-14nm.ko]
> undefined!
> ERROR: "ufs_qcom_phy_remove" [drivers/phy/phy-qcom-ufs-qmp-14nm.ko]
> undefined!
> ERROR: "get_ufs_qcom_phy" [drivers/phy/phy-qcom-ufs-qmp-14nm.ko]
> undefined!
>
> This exports all of the symbols that are provided by the base library
> module and used by the two driver modules.
>
> Signed-off-by: Arnd Bergmann <arnd at arndb.de>
> Fixes: adaafaa393ef ("phy: qcom-ufs: add support for QUALCOMM Technologies
> UFS PHY drivers")
> ---
>
> The broken patch is currently in the scsi tree, so if the phy maintainer
> thinks that my fix is correct, it should go there too.
I believe that exporting all interface functions is a good solution.
>
> An alternative approach would be to link all three phy-qcom-ufs source
> files into a single module.
>
> drivers/phy/phy-qcom-ufs.c | 21 +++++++++++++++++++++
> 1 file changed, 21 insertions(+)
>
> diff --git a/drivers/phy/phy-qcom-ufs.c b/drivers/phy/phy-qcom-ufs.c
> index 44ee983d57fe..c8f8c2dac18c 100644
> --- a/drivers/phy/phy-qcom-ufs.c
> +++ b/drivers/phy/phy-qcom-ufs.c
> @@ -73,6 +73,7 @@ int ufs_qcom_phy_calibrate(struct ufs_qcom_phy
> *ufs_qcom_phy,
> out:
> return ret;
> }
> +EXPORT_SYMBOL_GPL(ufs_qcom_phy_calibrate);
>
> struct phy *ufs_qcom_phy_generic_probe(struct platform_device *pdev,
> struct ufs_qcom_phy *common_cfg,
> @@ -110,6 +111,7 @@ struct phy *ufs_qcom_phy_generic_probe(struct
> platform_device *pdev,
> out:
> return generic_phy;
> }
> +EXPORT_SYMBOL_GPL(ufs_qcom_phy_generic_probe);
>
> /*
> * This assumes the embedded phy structure inside generic_phy is of type
> @@ -121,6 +123,7 @@ struct ufs_qcom_phy *get_ufs_qcom_phy(struct phy
> *generic_phy)
> {
> return (struct ufs_qcom_phy *)phy_get_drvdata(generic_phy);
> }
> +EXPORT_SYMBOL_GPL(get_ufs_qcom_phy);
>
> static
> int ufs_qcom_phy_base_init(struct platform_device *pdev,
> @@ -228,6 +231,7 @@ ufs_qcom_phy_init_clks(struct phy *generic_phy,
> out:
> return err;
> }
> +EXPORT_SYMBOL_GPL(ufs_qcom_phy_init_clks);
>
> int
> ufs_qcom_phy_init_vregulators(struct phy *generic_phy,
> @@ -252,6 +256,7 @@ ufs_qcom_phy_init_vregulators(struct phy *generic_phy,
> out:
> return err;
> }
> +EXPORT_SYMBOL_GPL(ufs_qcom_phy_init_vregulators);
>
> static int __ufs_qcom_phy_init_vreg(struct phy *phy,
> struct ufs_qcom_phy_vreg *vreg, const char *name, bool optional)
> @@ -443,6 +448,7 @@ out_disable_src:
> out:
> return ret;
> }
> +EXPORT_SYMBOL_GPL(ufs_qcom_phy_enable_ref_clk);
>
> static
> int ufs_qcom_phy_disable_vreg(struct phy *phy,
> @@ -485,6 +491,7 @@ void ufs_qcom_phy_disable_ref_clk(struct phy
> *generic_phy)
> phy->is_ref_clk_enabled = false;
> }
> }
> +EXPORT_SYMBOL_GPL(ufs_qcom_phy_disable_ref_clk);
>
> #define UFS_REF_CLK_EN (1 << 5)
>
> @@ -523,16 +530,19 @@ static void ufs_qcom_phy_dev_ref_clk_ctrl(struct phy
> *generic_phy, bool enable)
> phy->is_dev_ref_clk_enabled = enable;
> }
> }
> +EXPORT_SYMBOL_GPL(ufs_qcom_phy_dev_ref_clk_ctrl);
>
> void ufs_qcom_phy_enable_dev_ref_clk(struct phy *generic_phy)
> {
> ufs_qcom_phy_dev_ref_clk_ctrl(generic_phy, true);
> }
> +EXPORT_SYMBOL_GPL(ufs_qcom_phy_enable_dev_ref_clk);
>
> void ufs_qcom_phy_disable_dev_ref_clk(struct phy *generic_phy)
> {
> ufs_qcom_phy_dev_ref_clk_ctrl(generic_phy, false);
> }
> +EXPORT_SYMBOL_GPL(ufs_qcom_phy_disable_dev_ref_clk);
>
> /* Turn ON M-PHY RMMI interface clocks */
> int ufs_qcom_phy_enable_iface_clk(struct phy *generic_phy)
> @@ -561,6 +571,7 @@ int ufs_qcom_phy_enable_iface_clk(struct phy
> *generic_phy)
> out:
> return ret;
> }
> +EXPORT_SYMBOL_GPL(ufs_qcom_phy_enable_iface_clk);
>
> /* Turn OFF M-PHY RMMI interface clocks */
> void ufs_qcom_phy_disable_iface_clk(struct phy *generic_phy)
> @@ -573,6 +584,7 @@ void ufs_qcom_phy_disable_iface_clk(struct phy
> *generic_phy)
> phy->is_iface_clk_enabled = false;
> }
> }
> +EXPORT_SYMBOL_GPL(ufs_qcom_phy_disable_iface_clk);
>
> int ufs_qcom_phy_start_serdes(struct phy *generic_phy)
> {
> @@ -589,6 +601,7 @@ int ufs_qcom_phy_start_serdes(struct phy *generic_phy)
>
> return ret;
> }
> +EXPORT_SYMBOL_GPL(ufs_qcom_phy_start_serdes);
>
> int ufs_qcom_phy_set_tx_lane_enable(struct phy *generic_phy, u32
> tx_lanes)
> {
> @@ -606,6 +619,7 @@ int ufs_qcom_phy_set_tx_lane_enable(struct phy
> *generic_phy, u32 tx_lanes)
>
> return ret;
> }
> +EXPORT_SYMBOL_GPL(ufs_qcom_phy_set_tx_lane_enable);
>
> void ufs_qcom_phy_save_controller_version(struct phy *generic_phy,
> u8 major, u16 minor, u16 step)
> @@ -616,6 +630,7 @@ void ufs_qcom_phy_save_controller_version(struct phy
> *generic_phy,
> ufs_qcom_phy->host_ctrl_rev_minor = minor;
> ufs_qcom_phy->host_ctrl_rev_step = step;
> }
> +EXPORT_SYMBOL_GPL(ufs_qcom_phy_save_controller_version);
>
> int ufs_qcom_phy_calibrate_phy(struct phy *generic_phy, bool is_rate_B)
> {
> @@ -636,6 +651,7 @@ int ufs_qcom_phy_calibrate_phy(struct phy
> *generic_phy, bool is_rate_B)
>
> return ret;
> }
> +EXPORT_SYMBOL_GPL(ufs_qcom_phy_calibrate_phy);
>
> int ufs_qcom_phy_remove(struct phy *generic_phy,
> struct ufs_qcom_phy *ufs_qcom_phy)
> @@ -647,6 +663,7 @@ int ufs_qcom_phy_remove(struct phy *generic_phy,
>
> return 0;
> }
> +EXPORT_SYMBOL_GPL(ufs_qcom_phy_remove);
>
> int ufs_qcom_phy_exit(struct phy *generic_phy)
> {
> @@ -657,6 +674,7 @@ int ufs_qcom_phy_exit(struct phy *generic_phy)
>
> return 0;
> }
> +EXPORT_SYMBOL_GPL(ufs_qcom_phy_exit);
>
> int ufs_qcom_phy_is_pcs_ready(struct phy *generic_phy)
> {
> @@ -671,6 +689,7 @@ int ufs_qcom_phy_is_pcs_ready(struct phy *generic_phy)
> return ufs_qcom_phy->phy_spec_ops->
> is_physical_coding_sublayer_ready(ufs_qcom_phy);
> }
> +EXPORT_SYMBOL_GPL(ufs_qcom_phy_is_pcs_ready);
>
> int ufs_qcom_phy_power_on(struct phy *generic_phy)
> {
> @@ -725,6 +744,7 @@ out_disable_phy:
> out:
> return err;
> }
> +EXPORT_SYMBOL_GPL(ufs_qcom_phy_power_on);
>
> int ufs_qcom_phy_power_off(struct phy *generic_phy)
> {
> @@ -743,3 +763,4 @@ int ufs_qcom_phy_power_off(struct phy *generic_phy)
>
> return 0;
> }
> +EXPORT_SYMBOL_GPL(ufs_qcom_phy_power_off);
>
>
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