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staging: clocking-wizard: Remove the hardcoding of the clock outputs

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The number of output clocks are configurable in the hardware.
Currently the driver registers the maximum number of outputs.
Fix the same by registering only the outputs that are there.

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Link: https://lore.kernel.org/r/1614172241-17326-8-git-send-email-shubhrajyoti.datta@xilinx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Shubhrajyoti Datta 2021-02-24 18:40:39 +05:30 committed by Greg Kroah-Hartman
parent 91d695d718
commit a0d1a3864c
1 changed files with 7 additions and 8 deletions
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15
drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c
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@ -517,16 +517,15 @@ static int clk_wzrd_probe(struct platform_device *pdev)
} }
/* register div per output */ /* register div per output */
for (i = WZRD_NUM_OUTPUTS - 1; i >= 0 ; i--) { for (i = nr_outputs - 1; i >= 0 ; i--) {
const char *clkout_name; const char *clkout_name;
if (of_property_read_string_index(np, "clock-output-names", i, clkout_name = kasprintf(GFP_KERNEL, "%s_out%d", dev_name(&pdev->dev), i);
&clkout_name)) { if (!clkout_name) {
dev_err(&pdev->dev, ret = -ENOMEM;
"clock output name not specified\n"); goto err_rm_int_clk;
ret = -EINVAL;
goto err_rm_int_clks;
} }
if (!i) if (!i)
clk_wzrd->clkout[i] = clk_wzrd_register_divf clk_wzrd->clkout[i] = clk_wzrd_register_divf
(&pdev->dev, clkout_name, (&pdev->dev, clkout_name,
@ -548,7 +547,7 @@ static int clk_wzrd_probe(struct platform_device *pdev)
if (IS_ERR(clk_wzrd->clkout[i])) { if (IS_ERR(clk_wzrd->clkout[i])) {
int j; int j;
for (j = i + 1; j < WZRD_NUM_OUTPUTS; j++) for (j = i + 1; j < nr_outputs; j++)
clk_unregister(clk_wzrd->clkout[j]); clk_unregister(clk_wzrd->clkout[j]);
dev_err(&pdev->dev, dev_err(&pdev->dev,
"unable to register divider clock\n"); "unable to register divider clock\n");