mirror of https://gitee.com/openkylin/linux.git
firmware: xilinx: Add zynqmp IOCTL API for device control
Add ZynqMP firmware IOCTL API to control and configure devices like PLLs, SD, Gem, etc. Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com> Signed-off-by: Jolly Shah <jollys@xilinx.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
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@ -428,6 +428,47 @@ static int zynqmp_pm_clock_getparent(u32 clock_id, u32 *parent_id)
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return ret;
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}
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/**
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* zynqmp_is_valid_ioctl() - Check whether IOCTL ID is valid or not
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* @ioctl_id: IOCTL ID
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*
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* Return: 1 if IOCTL is valid else 0
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*/
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static inline int zynqmp_is_valid_ioctl(u32 ioctl_id)
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{
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switch (ioctl_id) {
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case IOCTL_SET_PLL_FRAC_MODE:
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case IOCTL_GET_PLL_FRAC_MODE:
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case IOCTL_SET_PLL_FRAC_DATA:
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case IOCTL_GET_PLL_FRAC_DATA:
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return 1;
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default:
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return 0;
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}
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}
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/**
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* zynqmp_pm_ioctl() - PM IOCTL API for device control and configs
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* @node_id: Node ID of the device
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* @ioctl_id: ID of the requested IOCTL
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* @arg1: Argument 1 to requested IOCTL call
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* @arg2: Argument 2 to requested IOCTL call
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* @out: Returned output value
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*
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* This function calls IOCTL to firmware for device control and configuration.
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*
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* Return: Returns status, either success or error+reason
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*/
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static int zynqmp_pm_ioctl(u32 node_id, u32 ioctl_id, u32 arg1, u32 arg2,
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u32 *out)
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{
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if (!zynqmp_is_valid_ioctl(ioctl_id))
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return -EINVAL;
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return zynqmp_pm_invoke_fn(PM_IOCTL, node_id, ioctl_id,
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arg1, arg2, out);
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}
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static const struct zynqmp_eemi_ops eemi_ops = {
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.get_api_version = zynqmp_pm_get_api_version,
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.query_data = zynqmp_pm_query_data,
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@ -440,6 +481,7 @@ static const struct zynqmp_eemi_ops eemi_ops = {
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.clock_getrate = zynqmp_pm_clock_getrate,
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.clock_setparent = zynqmp_pm_clock_setparent,
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.clock_getparent = zynqmp_pm_clock_getparent,
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.ioctl = zynqmp_pm_ioctl,
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};
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/**
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@ -34,7 +34,8 @@
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enum pm_api_id {
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PM_GET_API_VERSION = 1,
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PM_QUERY_DATA = 35,
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PM_IOCTL = 34,
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PM_QUERY_DATA,
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PM_CLOCK_ENABLE,
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PM_CLOCK_DISABLE,
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PM_CLOCK_GETSTATE,
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@ -99,6 +100,7 @@ struct zynqmp_eemi_ops {
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int (*clock_getrate)(u32 clock_id, u64 *rate);
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int (*clock_setparent)(u32 clock_id, u32 parent_id);
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int (*clock_getparent)(u32 clock_id, u32 *parent_id);
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int (*ioctl)(u32 node_id, u32 ioctl_id, u32 arg1, u32 arg2, u32 *out);
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};
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#if IS_REACHABLE(CONFIG_ARCH_ZYNQMP)
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