sdhci_zynqmp...lk_set_phase(9)

💅 sdhci_zynqmp_sampleclk_set_phase — from the Kernel API Manual, bestie ✨

okay so picture this: you're deep in the kernel, the SD card needs its input clock tap delays set, and you open this lil page. that's the vibe. welcome to sdhci_zynqmp_sampleclk_set_phase(9), the function that handles the SD input clock phase for you. no cap, she's a real one 🎀

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🌸 NAME 🌸

sdhci_zynqmp_sampleclk_set_phase — literally just here to Set the SD Input Clock Tap Delays. that's the whole job, and she does it 💅

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✨ SYNOPSIS ✨

int sdhci_zynqmp_sampleclk_set_phase (struct clk_hw *hw , int degrees );

like, that's the signature. short, sweet, iconic 👑

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🦋 ARGUMENTS 🦋

• hw — pointer to the hardware clock structure. yep, the clock thingy. you hand her the pointer and she's good to go 🫶
• degrees — the clock phase shift, and it's gotta be between 0 - 359. so like, a full circle minus one degree, iykyk 🔥

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💖 DESCRIPTION 💖

so what does she actually do? she Set the SD Input Clock Tap Delays for Input path. that's it. that's the whole description. input path only, bestie — don't come at her about the output path 🙈

the way this is such a specific little job and she just does it. main character energy fr fr ⭐

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🌈 RETURN 🌈

• 0 on success 🎉
• an error value on error 😭 (yes, that's the whole spec — go check the error, bestie)

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👑 SEE ALSO 👑

okay this list is LONG and honestly? she ate. every single one, no skipping 💀

Kernel file ./drivers/mmc/host/sdhci-of-arasan.c, plus:

• struct sdhci_arasan_soc_ctl_field(9)
• struct sdhci_arasan_soc_ctl_map(9)
• struct sdhci_arasan_clk_ops(9)
• struct sdhci_arasan_clk_data(9)
• struct sdhci_arasan_data(9)
• sdhci_arasan_syscon_write(9)
• sdhci_arasan_suspend(9)
• sdhci_arasan_resume(9)
• sdhci_arasan_sdcardclk_recalc_rate(9)
• sdhci_arasan_sampleclk_recalc_rate(9)
• sdhci_zynqmp_sdcardclk_set_phase(9)
• sdhci_versal_sdcardclk_set_phase(9)
• sdhci_versal_sampleclk_set_phase(9)
• sdhci_arasan_update_clockmultiplier(9)
• sdhci_arasan_update_baseclkfreq(9)
• arasan_dt_parse_clk_phases(9)
• sdhci_arasan_register_sdcardclk(9)
• sdhci_arasan_register_sampleclk(9)
• sdhci_arasan_unregister_sdclk(9)
• sdhci_arasan_update_support64b(9)
• sdhci_arasan_register_sdclk(9)

ngl bestie, the related-functions list here is giving "the whole friend group showed up to the party." read a few. they're all in ./drivers/mmc/host/sdhci-of-arasan.c anyway 🧚

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and that's the page!! mwah 💜 catch you in the source, from ./drivers/mmc/host, dated October 2026, the one and only sdhci_zynqmp...lk_set_phase(9) — periodt 🎀✨